7 Common Hydration Mistakes Women Over 40 Are Making (And the Protocol That Actually Works)

The hydration advice almost every woman has been carrying around since her twenties: “drink eight glasses a day, more is always better, clear urine is the goal” was written for a body that no longer exists in midlife. Your hormones have shifted. Your sweat composition has changed. Your sleep is different. Your tissue chemistry is different. And your old hydration habits are likely producing one of two outcomes: a body that’s quietly under-hydrated despite all the water you’re putting in, or one that’s chasing electrolyte balance with every flush.

Both are common. Neither is harmless.

Hydration in your forties and fifties is one of those things that feels too basic to be the thing holding you back until you start looking at the cascade of midlife symptoms that quietly trace back to it. Hot flashes that feel sharper than they should. Skin that creased and stayed creased. Puffy face in the morning, puffy ankles by 4 p.m. Fatigue that no amount of coffee touches. Hair that isn’t holding. Cramps that come out of nowhere. Brain fog that lifts the moment you drink something with electrolytes in it.

None of that is dramatic on its own. Stacked together, across hundreds of women I’ve worked with, they form a pattern that, more often than I expected, gets meaningfully better with one input: a real, midlife-specific hydration protocol.

This article walks through the seven hydration mistakes I see midlife women making most often, the research behind why each one matters more after 40, and the actual protocol I’d build if you were sitting across from me. We’ll also cover the midlife-specific hydration realities most generic advice ignores: hot flashes and fluid loss, perimenopausal water retention, estrogen’s role in tissue chemistry, and why your old “I drink a lot of water” baseline likely isn’t enough anymore. By the end you’ll know what to drink, when, with what, and how to tell if it’s actually working.

Let’s start with the most universal mistake.

Why Hydration Matters More in Midlife (And Why Your Old Habits Stopped Working)

A short physiology section, because most women weren’t taught this.

Hydration in the body is about where the water is. Total body water is split between intracellular fluid (water inside cells, about two-thirds) and extracellular fluid (between cells, in plasma, in lymph, about one-third). The body actively shifts water between these compartments based on hormonal signals, electrolyte balance, and demand. When the system works, your cells stay plump, your tissues stay flexible, your blood pressure holds steady, and your brain works clearly. When it doesn’t, almost every system starts to drift.

Three midlife-specific shifts make this harder than it used to be.

Estrogen affects fluid balance.

Estrogen modulates the body’s fluid regulation through its effects on vasopressin (the antidiuretic hormone), the renin-angiotensin-aldosterone system, and tissue hyaluronic acid content. As estrogen drops in perimenopause and falls further in menopause, baseline tissue hydration drops, skin loses water-binding capacity, and fluid distribution shifts in ways that produce both more visible water retention (puffy face, swollen ankles) and paradoxically less hydration at the cellular level.

Hot flashes and night sweats cost fluid.

A single significant hot flash can produce measurable sweat loss, and night sweats can mean waking up several times in the night losing fluid you don’t replace until morning. Multiply by months or years of perimenopausal vasomotor symptoms and you’re running a chronic hydration debt most generic advice doesn’t acknowledge.

Thirst signals get less reliable with age.

The thirst response weakens progressively from middle age onward. By the time you feel thirsty in your 50s, you’re often already 1-2% dehydrated and 2% dehydration is enough to measurably impair cognitive performance and physical capacity. You can’t rely on “drink when you’re thirsty” the way you could at 25.

Layer in the fact that midlife women are often running higher cortisol, less sleep, more caffeine, occasional alcohol, and the typical low-water diet of someone who eats salads-and-coffee for half their meals and the average 47-year-old is functionally under-hydrated without realizing it.

Here are the seven mistakes most women are making.

Mistake #1: Following the “8 Glasses a Day” Rule

The 64-ounce-a-day rule was never based on real research. It’s repeated everywhere because it’s memorable, not because it’s correct (Valtin, 2002 — the JCN review that traced the origin of the rule and found no evidence base). What you actually need depends on your bodyweight, body composition, activity level, climate, protein intake, sleep environment, alcohol and caffeine consumption, and hormonal status.

The framework that’s much closer to right for midlife women:

Aim for half to one ounce of fluid per pound of bodyweight daily. For a 150-lb woman, that’s 75-150 oz of fluid per day, with the higher end appropriate for women who train hard, live in hot or dry climates, eat high-protein, or are running chronic vasomotor symptoms.

That number sounds high. It is much higher than the 64 oz most women aim for. It is also much closer to what your body is actually losing daily through breath, skin, urine, and (in perimenopause) hot flashes and night sweats.

Two adjustments to the formula:

• If you eat a lot of water-rich foods (vegetables, fruit, soups, broth-based meals: the Mediterranean pattern delivers a lot of this), you can lean toward the lower end of the range
• If you train more than 4 days a week, live above 4,000 feet of elevation, take diuretic medications, or have heavy vasomotor symptoms, you should be at the high end

For the broader nutrition framework that includes hydration math, the free macro calculator and our midlife nutrition hierarchy walk through how this fits with protein, fiber, and calorie targets.

Mistake #2: Trying to Catch Up by Chugging Water Once

This is one of the most common patterns I see, and one of the least effective.

A woman realizes at 4 p.m. that she’s had two cups of coffee and almost no water all day. She chugs a 32-oz bottle in five minutes. She feels briefly accomplished. Most of that water passes through the kidneys within the next hour and ends up in the toilet, having barely touched the tissues that needed it.

The kidneys can only process about 27 to 33 oz of fluid per hour at the upper end. Beyond that rate, the body excretes the excess rather than absorbing it. Drinking a quart of water all at once is functionally similar to drinking only what your kidneys could process anyway except now you’ve also flushed sodium and other electrolytes out with the surplus.

The fix: small, consistent sips throughout the day. The body absorbs water best when it’s coming in at roughly the rate it’s losing it which is gradual. Aim for 8-16 oz per hour during waking hours, with adjustments around training, meals, and hot flashes. A 24-oz water bottle refilled three or four times during the day, sipped continuously, hydrates dramatically better than the same total volume consumed in one or two sittings.

This also addresses an underrated benefit: continuous hydration trains the bladder to handle smaller, more frequent volumes, which is meaningfully better for pelvic floor health and sleep (where a single huge evening water dose can wake you up multiple times).

Mistake #3: Treating Hydration as Separate from Food

The water you drink is one source of hydration. The food you eat is the other and for many midlife women, the food side is where the protocol falls apart.

A typical “clean eating” midlife day – coffee, smoothie, salad, salmon, vegetables: actually delivers a decent amount of water through food. But a typical “I’m busy” day – coffee, protein bar, a wrap, more coffee, dinner whatever’s easiest – delivers almost none.

Specific food-and-hydration realities for midlife women:

High-protein diets need more water. The metabolism of protein produces nitrogenous waste (primarily urea) that the kidneys excrete with water. The more protein you eat, the more water you need to process it. If you’ve increased your protein intake to 1.6–2.2g/kg of bodyweight (which most midlife women should — see our protein for women over 40 guide), your water needs go up correspondingly.

Diuretic foods exist. Coffee, alcohol, asparagus, watermelon (high water content but mildly diuretic), and certain herbal teas (dandelion, parsley) all increase urinary output. Most aren’t problematic in normal amounts, but they’re not net-hydrating either.

Salt-heavy ultra-processed foods dehydrate. Cured meats, packaged snacks, restaurant meals – the salt load pulls water from the cells into the extracellular space, producing both visible bloating and cellular dehydration at the same time. The puffy face after a salty dinner is not hydration; it’s the opposite.

Sugar-heavy beverages dehydrate. Soft drinks, sweetened coffees, fruit juices, sweet kombucha – the high osmolar load pulls water into the gut and out of cells, producing a temporary spike in thirst and a net hydration loss.

Water-rich whole foods hydrate well. Cucumber, celery, watermelon, berries, leafy greens, broth-based soups, citrus fruits, yogurt, cottage cheese, tomatoes. A salad with olive oil, vegetables, and a protein delivers meaningful water along with everything else.

Mediterranean-pattern eating is, among other things, a high-hydration eating pattern. Lots of vegetables, broth-based dishes, fruit, olive oil, fish – the cumulative water and electrolyte content is substantially higher than the typical processed-food American diet. For the practical food side, our 80 Macro-Friendly Mediterranean Recipes cookbook is built around exactly this template.

Mistake #4: Aiming for Crystal-Clear Urine

This one will surprise people. Crystal-clear urine is not the gold standard. It’s usually the sign that you’re flushing electrolytes faster than you can absorb them.

Healthy hydration produces urine that’s pale yellow to light straw color. That’s the indicator your kidneys are concentrating waste appropriately while maintaining electrolyte balance. Dark yellow or amber urine indicates dehydration – drink more water. But colorless, water-clear urine indicates you’ve overshot, and the kidneys are excreting the excess along with sodium, potassium, and magnesium you actually need.

This matters particularly in midlife because:

• Estrogen drops change the body’s ability to retain sodium, making electrolyte balance more fragile
• Most women already undershoot magnesium, potassium, and sometimes sodium from food alone
• The fatigue, cramping, and brain fog of mild electrolyte depletion are often misdiagnosed as “just menopause” when they’re actually fixable

The target: light straw color, 4–7 urine outputs per day. Not clear or bright yellow.

If your urine has been consistently water-clear and you’re feeling tired, foggy, or crampy – drink less plain water and more fluid with electrolytes (broth, mineral water, properly-dosed electrolyte mix, electrolyte-rich whole foods like coconut water or a pinch of sea salt + citrus in your water). Our all time client favorite electrolyte recipe can be found here.

Mistake #5: Avoiding Salt & Electrolytes

This mistake is particularly costly for midlife women, and almost universal among women who’ve spent years being told salt is the enemy.

Yes, ultra-processed food contains way too much sodium. Yes, sodium-heavy restaurant meals contribute to bloating, blood pressure, and water retention. None of that means added salt in your home cooking is a problem. It almost certainly is not.

Sodium is an essential electrolyte. Your nervous system runs on it. Your muscles need it. Your blood pressure depends on it being in the right range. Your cells use the sodium-potassium gradient to do almost everything they do. Modern wellness culture’s blanket “avoid salt” message has produced a generation of midlife women running chronically low on sodium while still eating processed foods loaded with the wrong kind.

The math that matters: sweating loses sodium. Hot flashes produce sweating. Exercise produces sweating. Living in a hot or dry climate produces sweating. Each of those situations replaces sodium poorly with water alone.

The complete electrolyte picture matters too:

• Sodium – fluid balance, nerve impulses, muscle contraction
• Potassium – paired with sodium for cell function, often undershot in low-vegetable diets
• Magnesium – over 300 enzymatic reactions, sleep, muscle relaxation, mood — chronically undershot by most women
• Calcium – bone, muscle, nerve transmission
• Chloride – fluid balance, stomach acid

Sports drinks designed for younger athletes are usually full of sugar and don’t replace electrolytes in the right ratios. What you want is a real electrolyte product without added sugar that includes meaningful doses of sodium, potassium, and magnesium — ideally calcium and chloride too.

Adding a pinch of unrefined sea salt and a squeeze of lemon to your first glass of water in the morning is the cheapest version of this protocol. For the more measurable version, a clinical-grade electrolyte powder added to 16–24 oz of water once or twice a day delivers reliable doses. Our vitamins and supplements collection carries Thorne products — including their Daily Electrolytes — which are formulated without sugar and built around the sodium-potassium-magnesium-calcium-chloride ratio your body actually needs.

Mistake #6: Skipping the Morning Hydration Window

This one matters more than most women realize.

Across a full night of sleep, you lose roughly 16–24 oz of fluid through breath, skin, and (in midlife) night sweats. By the time you wake up, you’re in a mild but real fluid deficit. Most women cover this deficit with… a cup of coffee – which is a mild diuretic and an additional cortisol stimulus on top of an already-elevated morning cortisol curve. The protocol gets worse, not better.

The morning hydration window is one of the biggest moves you can make for daily energy. The research shows that the body’s fluid absorption is most efficient in the first 60 minutes after waking, and that morning rehydration improves cognitive performance, mood, and even hunger regulation throughout the day.

The morning protocol (5 minutes, before coffee):

• 16-20 oz of water, room temperature
• Pinch of unrefined sea salt (the size of a few grains of rice)
• Squeeze of fresh lemon or splash of apple cider vinegar (optional, supports stomach acid + adds mild electrolytes)
• Drink within 10 minutes of waking
• Then move. 5 minutes of gentle morning movement before coffee

This single change, moving the first water dose ahead of the first coffee dose, produces measurable improvements in afternoon energy, hunger regulation, and hot flash frequency for many midlife women within 2–3 weeks.

For more on the morning routine architecture that anchors midlife wellbeing, see our pieces on why putting yourself last backfires and the midlife sleep stack – sleep, light, movement, and hydration all interact in the first hour of the day.

Mistake #7: Only Drinking Water After a Workout

A 5% drop in body water can reduce physical performance by up to 30%. A 2% drop measurably impairs cognitive performance, mood, and the perceived effort of any given exercise. And midlife women, with weaker thirst signals and higher baseline fluid losses, are particularly likely to start a workout already mildly dehydrated.

Drinking water after you train helps recovery. But it doesn’t undo the performance hit of training dehydrated, and it doesn’t replace what was lost during the session, particularly in a hot room, a long class, or a heavy lifting day.

The midlife training hydration protocol:

• 2 hours before training: 16 oz water with electrolytes
• 30 minutes before training: 8 oz water
• During training (60+ minute session): 4-8 oz every 15–20 minutes, with electrolytes if you’re sweating heavily or training in a hot space
• Within 30 minutes after training: 16-24 oz water with electrolytes, plus protein (20–30g).

Pre-, during, and post-hydration is the protocol that actually moves performance and recovery. Post-only hydration is just damage control on a deficit you could have avoided.

The Midlife-Specific Hydration Reality No Generic Article Tells You

A few things that almost never appear in generic hydration content but matter enormously in perimenopause and menopause.

Hot flashes and night sweats produce real fluid losses. A single significant hot flash can produce sweating equivalent to mild exercise. Three or four a day, plus night sweats, plus occasional drenching events over weeks and months, this adds up to a chronic fluid debt that most women are not actively replacing. Track your hot flashes for a week; add 8-16 oz of water with electrolytes for each significant one.

Perimenopause causes paradoxical water retention. Many women in perimenopause notice they’re more bloated, puffier in the face, and have swollen fingers or ankles and assume this means they’re drinking too much water. The opposite is often true. The puffiness is usually a sodium-fluid balance issue (often too little sodium relative to water intake) plus hormone fluctuations affecting vasopressin, not “drinking too much.”

Histamine increases in perimenopause. Falling estrogen and shifting progesterone affect histamine clearance through the diamine oxidase (DAO) enzyme. Higher histamine = more inflammation, more puffiness, more rashes, more headaches. Adequate hydration with electrolytes (particularly magnesium) supports histamine clearance.

Caffeine sensitivity increases. The caffeine tolerance you had at 28 is often gone at 48. The same 16 oz of coffee that used to wake you up now produces three to five hours of mild dehydration, jitters, and a 3 p.m. crash. Most midlife women benefit from reducing total caffeine to 1-2 cups in the morning and switching to herbal tea or water in the afternoon.

Alcohol hits hydration twice as hard. Alcohol blocks vasopressin (the antidiuretic hormone), which means you urinate out more fluid than you drink. Then it disrupts sleep, when most overnight fluid loss happens. Then it elevates cortisol, which affects fluid balance. In midlife, where sleep is already fragile, the cumulative hydration cost of even moderate alcohol is much higher than the social cost suggests. See our piece on alcohol and menopause: use at your own risk for the honest math.

Skin hydration tracks systemic hydration only loosely. Topical skincare matters; so does internal hydration. Estrogen drives the body’s production of hyaluronic acid, which is what gives skin its plump water-binding quality. As estrogen falls, even well-hydrated midlife women notice skin changes that water alone won’t fix. The fix is multi-layered. Hydration + omega-3 + collagen + topical actives + sleep + sun protection.

Foods That Hydrate Better Than Water Alone

A short list, because food is part of the hydration math.

Cucumber (96% water), celery (95%), watermelon (92%), zucchini (95%), tomato (94%), lettuce (96%), bell pepper (92%), strawberries (91%), grapefruit (88%), oranges (87%), apples (86%), pears (84%), yogurt (85%), cottage cheese (80%), broth-based soup (90%+).

The bonus with food-based hydration is that you also get fiber, vitamins, minerals, antioxidants, and naturally occurring electrolytes particularly potassium. A meal built around vegetables, lean protein, olive oil, and fruit is functionally a slow electrolyte solution that also nourishes the rest of the body.

For the practical food side, the Macro Miracle Mediterranean Cookbook has 80 recipes built on water-rich, electrolyte-balanced eating designed for midlife.

The Real Midlife Hydration Protocol (Put It All Together)

Here’s the protocol I’d build if you were sitting across from me.

On waking (within 10 minutes): 16-20 oz water with a pinch of unrefined sea salt + squeeze of lemon. Then 5 minutes of gentle morning movement. Then coffee, if you drink it

Mid-morning to early afternoon: 8-16 oz per hour of water, sipped continuously. One electrolyte serving if you trained that morning, are in a hot environment, or had significant hot flashes overnight

With each meal: 8-12 oz of water. Build the meal around water-rich foods (salad, vegetables, soup, fruit, dairy)

Around training: 16 oz with electrolytes 2 hours before – 8 oz 30 minutes before. 4-8 oz every 15-20 minutes during. 16-24 oz with electrolytes after

Late afternoon: Reduce intake after 5-6 p.m. to avoid sleep disruption from overnight bathroom trips. Switch to herbal tea (chamomile, ginger, peppermint, rooibos) if you want warm fluids. Check out our tea collection here.

Evening: 8 oz water with magnesium glycinate or citrate (200–400mg) if you’re working on sleep. See our sleep stack guide for the broader sleep supplement protocol

Daily total: 0.5-1 oz per pound of bodyweight, adjusted up for training, climate, and hot flash frequency. Most midlife women land between 75 and 120 oz total.

Track this for two weeks and notice:

• Morning puffiness
• Afternoon energy
• Headache frequency
• Hot flash frequency and intensity
• Skin texture
• Workout performance and recovery
• Sleep quality

Most women see meaningful changes in the first 7-14 days.

For the broader integrative protocol that puts hydration alongside protein, training, sleep, and stress regulation, the Age With Strength 1:1 coaching program is the structured version of this work, and our women’s wellness retreats are where this all comes together in practice.

When Hydration Isn’t Enough on Its Own

For most women, daily hydration work delivers visible results within 2-4 weeks. Energy steadies. Puffiness softens. Skin texture improves. Workouts feel different.

But some women hit a wall, hydration is dialed in but the fatigue, puffiness, hot flashes, or brain fog persist. That’s the signal that hydration was one piece of a multi-piece picture, and the rest needs attention too. Usually that means looking at sleep, stress, hormone status, thyroid function, gut health, and the broader nutrition framework.

For the integrated path, hydration plus training plus protein plus sleep plus stress regulation plus identity work, the Age With Strength 1:1 coaching program addresses all five pillars together. For the deeper reset that everyday practices cannot deliver, the women’s wellness retreats are the in-person version of the same logic.

FAQ: Common Hydration Mistakes for Women Over 40

How much water should a woman over 40 drink per day?

A workable target is 0.5 to 1 ounce of fluid per pound of bodyweight, adjusted up for training, hot climate, and hot flash frequency. For a 150-lb woman, that’s 75–150 oz per day. Most midlife women land between 80 and 110 oz on a typical day. The 8-glasses-a-day rule has no real evidence base and is usually too low for active midlife women.

Why am I more dehydrated in perimenopause and menopause?

Three reasons. Estrogen modulates tissue hydration and the antidiuretic hormone vasopressin — as estrogen falls, baseline tissue water content drops. Hot flashes and night sweats produce real fluid losses many women don’t replace. And the thirst response weakens with age, so you don’t feel the deficit even when it’s there.

Do I need electrolytes, or is water enough?

For most midlife women, especially those training, dealing with hot flashes, or living in hot climates — yes, you need electrolytes. Sodium, potassium, magnesium, and chloride all get lost in sweat and aren’t replaced by water alone. A pinch of unrefined sea salt + citrus in your morning water is the cheapest version. A clinical-grade electrolyte powder is the measured version.

What’s the best electrolyte supplement for women over 40?

Look for a product with meaningful doses of sodium (300–1000mg), potassium (200–500mg), magnesium (50–200mg), calcium, and chloride, with no added sugar. The Thorne Daily Electrolytes available in our vitamins and supplements collection is formulated around exactly this ratio.

Will drinking more water help with hot flashes?

Indirectly, yes. Hot flashes produce fluid losses, and being chronically under-hydrated can lower the threshold at which the body triggers a flush. Adequate hydration + electrolytes doesn’t eliminate hot flashes (the underlying hormonal trigger is what causes them) but does reduce the cumulative cost on your body and often reduces frequency for some women.

Why is my urine sometimes too clear?

Crystal-clear urine usually means you’ve overshot water intake relative to electrolyte intake — the kidneys are flushing out water along with the sodium, potassium, and magnesium you need. Aim for pale yellow / light straw color, 4–7 urinations per day.

Is coffee dehydrating?

Mildly. Caffeine is a mild diuretic, but the fluid in the coffee itself partially offsets the diuretic effect. The bigger issue with morning coffee is that it often replaces a real first hydration dose — and stacks on top of already-elevated morning cortisol. The fix is having 16–20 oz of water with electrolytes before your first coffee.

How much water should I drink with high-protein meals?

Protein metabolism increases urinary nitrogen excretion, so higher protein intake increases water needs. If you’ve increased protein to 1.6–2.2 g/kg of bodyweight (which most midlife women should), aim for the upper end of the hydration range (closer to 1 oz per pound of bodyweight daily).

Does drinking lots of water help with weight loss in menopause?

Modest direct effect, larger indirect effects. Adequate hydration supports metabolic rate, improves exercise performance, reduces hunger confusion (thirst often masquerades as hunger), and supports the kidney clearance of metabolic byproducts during fat loss. It’s a foundation, not a fat-loss strategy on its own.

Should I drink water during or only after a workout?

Both, plus before. The protocol that works in midlife: 16 oz with electrolytes 2 hours before training, 8 oz 30 minutes before, 4–8 oz every 15–20 minutes during, and 16–24 oz with electrolytes within 30 minutes after. Pre- and intra-workout hydration prevents the performance hit; post-workout supports recovery.

What’s wrong with starting the day with coffee?

Two things. Coffee is mildly diuretic and arrives on top of already-elevated morning cortisol. And it almost always replaces the much more useful first hydration dose. Move water (16–20 oz with a pinch of salt and lemon) ahead of coffee in the order of operations — coffee still happens, just second.

Are sports drinks good for midlife women?

Most are not. Standard sports drinks are formulated for young athletes with high sugar content and electrolyte ratios calibrated for prolonged endurance exercise. For midlife women, the sugar dose is more than needed and the electrolyte profile often misses magnesium and calcium. Look for a low- or no-sugar electrolyte product instead.

Can I be drinking too much water?

Yes, particularly if you’re not replacing electrolytes. Over-hydration without sodium can dilute blood sodium concentration to dangerous levels (hyponatremia), which causes fatigue, headache, nausea, confusion, and in rare cases serious neurological symptoms. The fix is not less water alone — it’s water plus electrolytes.

What if I have to pee constantly when I drink more water?

A few possibilities. (1) You may be missing electrolytes — sodium intake too low means water passes through quickly. Add a pinch of salt. (2) You may be drinking in large doses rather than steady sips — switch to sipping. (3) Some medications, caffeine, and alcohol all increase urinary frequency on their own. (4) Pelvic floor issues are common in midlife and treatable — see a pelvic floor PT if frequency, urgency, or leakage is a daily issue.

How long until I see results from improving my hydration?

Most women notice morning puffiness and afternoon energy changes within 5–10 days. Skin texture and workout performance changes show up around 2–3 weeks. Hot flash frequency reductions, where they happen, are typically seen within 3–4 weeks.

Is water the only thing that counts as hydration?

No. Herbal tea, broth, sparkling water, mineral water, water-rich foods (cucumber, watermelon, leafy greens, soup, yogurt), and electrolyte drinks all count. About 20–30% of daily hydration for most people comes through food. The Mediterranean diet pattern is naturally high-hydration because of its emphasis on vegetables, fruit, broth-based dishes, and olive oil.

Sources & References

1. Valtin, H. (2002). “Drink at least eight glasses of water a day.” Really? Is there scientific evidence for “8 × 8”? American Journal of Physiology — Regulatory, Integrative and Comparative Physiology, 283(5), R993–R1004.
2. Institute of Medicine. (2005). Dietary Reference Intakes for Water, Potassium, Sodium, Chloride, and Sulfate. National Academies Press.
3. Stachenfeld, N. S. (2008). Sex hormone effects on body fluid regulation. Exercise and Sport Sciences Reviews, 36(3), 152–159.
4. Freedman, R. R. (2014). Menopausal hot flashes: Mechanisms, endocrinology, treatment. Journal of Steroid Biochemistry and Molecular Biology, 142, 115–120.
5. Phillips, P. A., Rolls, B. J., Ledingham, J. G. G., Forsling, M. L., Morton, J. J., Crowe, M. J., & Wollner, L. (1984). Reduced thirst after water deprivation in healthy elderly men. New England Journal of Medicine, 311(12), 753–759.
6. Armstrong, L. E., Ganio, M. S., Casa, D. J., Lee, E. C., McDermott, B. P., Klau, J. F., et al. (2012). Mild dehydration affects mood in healthy young women. Journal of Nutrition, 142(2), 382–388.
7. Ganio, M. S., Armstrong, L. E., Casa, D. J., McDermott, B. P., Lee, E. C., Yamamoto, L. M., et al. (2011). Mild dehydration impairs cognitive performance and mood of men. British Journal of Nutrition, 106(10), 1535–1543.
8. Pross, N., Demazières, A., Girard, N., Barnouin, R., Santoro, F., Chevillotte, E., et al. (2014). Effects of changes in water intake on mood of high and low drinkers. PLOS ONE, 9(4), e94754.
9. Goulet, E. D. B., Mélançon, M. O., Aubertin-Leheudre, M., & Dionne, I. J. (2018). Aging and the kidneys: Anatomy, physiology and consequences for defining chronic kidney disease. Nephron, 140(2), 119–122.
10. Sawka, M. N., Burke, L. M., Eichner, E. R., Maughan, R. J., Montain, S. J., & Stachenfeld, N. S. (2007). American College of Sports Medicine position stand. Exercise and fluid replacement. Medicine & Science in Sports & Exercise, 39(2), 377–390.
11. Armstrong, L. E., Soto, J. A., Hacker Jr, F. T., Casa, D. J., Kavouras, S. A., & Maresh, C. M. (1998). Urinary indices during dehydration, exercise, and rehydration. International Journal of Sport Nutrition, 8(4), 345–355.
12. Maughan, R. J., Watson, P., Cordery, P. A., Walsh, N. P., Oliver, S. J., Dolci, A., et al. (2016). A randomized trial to assess the potential of different beverages to affect hydration status: Development of a beverage hydration index. American Journal of Clinical Nutrition, 103(3), 717–723.
13. Stookey, J. D., Constant, F., Popkin, B. M., & Gardner, C. D. (2008). Drinking water is associated with weight loss in overweight dieting women independent of diet and activity. Obesity, 16(11), 2481–2488.
14. Popkin, B. M., D’Anci, K. E., & Rosenberg, I. H. (2010). Water, hydration, and health. Nutrition Reviews, 68(8), 439–458.
15. Estruch, R., Ros, E., Salas-Salvadó, J., Covas, M.-I., Corella, D., Arós, F., et al. (2018). Primary prevention of cardiovascular disease with a Mediterranean diet supplemented with extra-virgin olive oil or nuts (PREDIMED). New England Journal of Medicine, 378(25), e34.
16. Maughan, R. J. (2003). Impact of mild dehydration on wellness and on exercise performance. European Journal of Clinical Nutrition, 57(Suppl 2), S19–S23.
17. Phillips, S. M., Chevalier, S., & Leidy, H. J. (2016). Protein “requirements” beyond the RDA: Implications for optimizing health. Applied Physiology, Nutrition, and Metabolism, 41(5), 565–572.
18. Stachenfeld, N. S., & Taylor, H. S. (2014). Challenges and methodology for testing young healthy women in physiological studies. American Journal of Physiology — Endocrinology and Metabolism, 306(8), E849–E853.
19. Maufrais, C., Sarafian, D., Dulloo, A., & Montani, J. P. (2018). Cold drinks acutely lower water and carbohydrate intake in young healthy women. European Journal of Clinical Nutrition, 72(10), 1465–1467.
20. EFSA Panel on Dietetic Products, Nutrition, and Allergies. (2010). Scientific opinion on dietary reference values for water. EFSA Journal, 8(3), 1459.