Health
Discover facts about health. Small discoveries that change the way you see familiar things.
Health
Laughter can make you collapse while conscious
Cataplexy, commonly associated with type 1 narcolepsy, causes a sudden loss of muscle tone while awareness remains. Strong emotion such as laughter can…
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What chemical sunscreen does with UV rays
When UV rays hit chemical sunscreen, its ingredients absorb the energy and convert it into heat near the skin's surface. That gives the rays a different…
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Vitamin D deficiency affects hundreds of genes
Vitamin D can act like a hormone: it enters cells and helps regulate which genes are switched on or off. Severe deficiency can disrupt that regulation across…
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Why spicy food can cool you down
Capsaicin—the compound that makes chilies feel hot—sets off heat-sensing nerves, so your body responds by sweating. When that sweat evaporates, it carries…
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A brain scan study asked what sitting time might reveal
UCLA researchers studied 35 middle-aged and older adults in 2018 and found that more reported sitting time was associated with a thinner medial temporal…
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Your eyes can distinguish millions of colors
Different colors stimulate the eye’s three types of cone cells in different combinations. The brain reads those overlapping signals as distinct shades, giving…
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The boring habits that support your immune system
Sleep, fluids, and stress aren’t immune-system switches; they support ordinary body functions that immune defenses rely on. During sleep, immune signaling and…
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Late-night meals may disrupt your body's defenses
A late meal may be happening while the body is doing overnight repair, but “at the same time” does not mean “gets in the way.” The body runs many jobs at…
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Crucial role of non-exercise activity thermogenesis in maintaining a lifetime of metabolic health
Every time you fidget, climb stairs, or walk across a room, your muscles spend energy—even if you never count it as exercise. Those small costs accumulate…
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Why lemon helps your body absorb plant-based iron
Plant foods contain a form of iron that your body absorbs less readily than the iron in meat. Vitamin C in lemon juice or bell pepper helps make that plant…
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Sealing your lips doesn't open a blocked airway
Mouth taping aims to steer breathing through the nose, but snoring and sleep apnea can involve obstruction deeper in the airway. Closing the mouth doesn't…
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Rest can be active even when you barely move
Guided imagery and other relaxation practices give attention a quiet task while encouraging slower breathing and reduced arousal. You may stay awake…
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A chemical can imitate a message meant for your hormones
Some endocrine-disrupting chemicals mimic or interfere with hormone signals. That matters because these signals coordinate growth, reproduction, and…
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Crucial difference between your biological and chronological age that redefines the human aging process
Your birthday counts time; biological age tries to estimate how much aging your body shows. Epigenetic clocks read chemical patterns attached to DNA that…
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Why a hot shower can help you sleep
The warm shower doesn’t make you sleepy just by heating you up. It widens blood vessels near the skin, helping your body release heat after you get out; that…
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Why a standing desk won't fix your back by itself
Your back muscles need movement, not just a different fixed position. A standing desk can relieve some sitting, but if you stay planted for hours, your…
Discover moreModern nutritional science shockingly reveals that seemingly healthy packaged diet foods are frequently loaded with sneaky inflammatory ingredients that completely disrupt your…
Artificial emulsifiers and hidden processed sugars drastically alter the delicate bacterial balance inside our digestive tracts. When the microbiome suffers,…
Discover moreIncorporating a vibrantly colorful variety of antioxidant rich plants into your daily diet radically reduces invisible cellular inflammation which is the absolute foundational…
You truly are what you eat. By prioritizing diverse, nutrient-dense whole foods over heavily processed options, you provide your body with the essential…
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Ultimate vitamin mix for winter immunity
Vitamin D3, zinc, and vitamin C all support normal immune function, but taking them doesn’t create an “unbreakable” shield. Supplements can supply nutrients;…
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Water expands when freezing—and that keeps lakes from freezing solid from below
Water reaches its greatest density near 4°C, then becomes less dense as it cools toward freezing. Ice therefore floats and forms a surface layer, insulating…
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How to hydrate properly without overdoing it
Hydration is a balance, not a contest to drink the most water. Electrolytes such as sodium help regulate fluid around cells, and too much water in a short…
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Magnesium may help calm muscles and nerves
Magnesium helps nerve cells manage electrical signals and helps muscles contract and relax. Spinach and pumpkin seeds contain it, but that role doesn’t mean…
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How to finally stop mindless evening snacking
Habits often run on cues: dinner ends, the evening begins, and a snack follows. Brushing your teeth can create a new cue that eating is over, while a mug of…
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Coffee can change how much iron a meal delivers
A controlled study found that drinking coffee with a meal reduced absorption of nonheme iron, the form found in plant foods. Stronger coffee produced a larger…
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