Does Blue Light From Screens Actually Ruin Your Sleep?
Verdict MYTH
02 Supplements
Is Melatonin a Safe Long-Term Sleep Aid?
Melatonin is sold over the counter like a vitamin. We look at what the dose, label-accuracy, and long-term safety evidence actually shows about nightly use.
- The claim
- Is Melatonin a Safe Long-Term Sleep Aid.
- The verdict
- IT DEPENDS
Today’s verdicts
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04Myths & Facts -
04Myths & Facts Will Eight Hours of Sleep Fix Everything?
Verdict MYTH
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04Myths & Facts Do You Really Need 10,000 Steps a Day?
Verdict MYTH
Latest
The full index- 04Myths & Facts
Does Blue Light From Screens Actually Ruin Your Sleep?
Blue light gets blamed for wrecked sleep, with night mode and blocking glasses sold as the fix. Here's how big the wavelength effect really is next to timing and content.
- 01Nutrition
Is Coffee Actually Good for You Now?
Coffee has been called both a health risk and a health food. We trace why the headlines kept flipping and where the evidence has cautiously settled.
- 02Supplements
Does Vitamin D Really Prevent Everything It's Marketed For?
Vitamin D does a few specific things well. The longer list of diseases it was supposed to prevent did not hold up when the large trials finally ran.
- 03Hydration
Do "Detox" Drinks and Cleanses Actually Flush Toxins?
Detox drinks promise to flush toxins, but your liver and kidneys already do that job. We explain what detox really means and the risks of extreme cleanses.
- 04Myths & Facts
Will Eight Hours of Sleep Fix Everything?
Eight hours of sleep gets treated as a universal prescription. We look at where the number comes from, how much it varies by person, and what actually predicts feeling rested.
- 01Nutrition
Is Gluten Bad for People Without Celiac Disease? What the Evidence Says
Gluten-free diets have spread far beyond celiac disease. We explain what controlled trials actually show about non-celiac gluten sensitivity and where the placebo signal is strong.
- 02Supplements
Best Electrolyte Supplements in 2026: An Evidence-Based Ranking
Five electrolyte powders ranked against what the evidence actually says about absorption, the sodium-potassium ratio, ingredient red flags, and label transparency.
- 03Hydration
Can You Really Be Dehydrated Without Feeling Thirsty?
Is thirst too late a signal? We examine how thirst regulation works, the subtler signs of dehydration, and who is most at risk of missing them.
- 04Myths & Facts
Do You Really Need 10,000 Steps a Day?
The 10,000-step target came from a 1960s pedometer ad, not a clinical study. Here's what current dose-response research says step counts actually do.
- 01Nutrition
Does Lemon Water First Thing in the Morning Do Anything?
Lemon water is sold as a morning ritual that detoxes, alkalizes, and boosts metabolism. We check what the hydration and the vitamin C actually deliver.
- 02Supplements
Are "Natural" Supplements Automatically Safe?
The word natural is reassuring, but it says nothing about safety, dose, or interactions. We explain why, and how to vet a supplement sensibly.
- 03Hydration
Is Coconut Water a Superior Sports Drink?
Coconut water is marketed as nature's sports drink. We compare the marketing to its actual electrolyte profile and where plain water wins.
- 04Myths & Facts
Is "No Pain, No Gain" a Useful Rule for Exercise?
The gym mantra lumps two very different feelings together. We separate the discomfort that comes with real training effort from the pain you should never push through.
- 01Nutrition
Is Intermittent Fasting Better Than Just Eating Less?
Head-to-head trials keep landing in the same place: when calories are matched, fasting schedules do not clearly beat plain calorie restriction.
- 02Supplements
Collagen Supplements: Do They Do Anything for Skin and Joints?
Collagen supplements are booming. We check the trend against what's actually been measured for skin and joints, and where claims outrun evidence.
- 03Hydration
Does Drinking Water Help You Lose Weight?
Water is often sold as a weight-loss tool. We take a measured look at appetite, metabolism, and where the water-for-weight claim is oversold.
- 04Myths & Facts
Does Stretching Before Exercise Prevent Injury?
The claim that pre-workout stretching prevents injury is weaker than it sounds. We look at static vs. dynamic stretching and what the injury data actually shows.
- 01Nutrition
Is Red Meat Bad for You? Sorting Signal From Headline
Red meat headlines can sound alarming. We read past them to the actual size of the risk and what "moderation" really means.
- 02Supplements
Is Magnesium the Answer to Better Sleep?
Magnesium has become a go-to sleep aid online. We weigh the buzz against a fairly thin evidence base and look at food sources versus pills.
- 03Hydration
Do You Really Need 8 Glasses of Water a Day?
The 8x8 rule is everywhere, but its origins are murky. We track down where it came from and what hydration guidance actually says.
- 04Myths & Facts
Are "Superfoods" Actually Super, or Just Marketing?
The word superfood has no scientific or regulatory meaning. We trace how a marketing label ended up on everything from blueberries to cacao, and what the evidence actually supports.
- 01Nutrition
Does Eating Late at Night Make You Gain Weight?
The late-eating debate is really a question about timing versus total intake. We separate the clock from the calories and explain what drives the effect.
- 02Supplements
Do You Really Need a Daily Multivitamin?
We look at who plausibly benefits from a daily multivitamin, who probably doesn't, and what the data says about the popular insurance-policy idea.
- 04Myths & Facts
Does Apple Cider Vinegar Actually Do Anything for Your Health?
Apple cider vinegar has a long list of wellness claims attached to it. We separate the small, measurable effects from the much larger marketing halo.
- 01Nutrition
Is "Natural" Sugar Better Than Refined Sugar?
Honey, maple, and other natural sweeteners carry a health halo. We test that halo against how the body actually handles different sugars.
- 02Supplements
Does Vitamin C Actually Prevent Colds?
The belief that vitamin C wards off colds is decades old. We revisit it against the trial evidence and the key difference between prevention and duration.
- 04Myths & Facts
Does Sugar Make Kids Hyperactive?
One of the most-tested beliefs in nutrition. We look at the blind-test studies, why parents still see a sugar buzz, and what's really going on at the party.
- 01Nutrition
Are Eggs Bad for Your Cholesterol? What the Evidence Now Says
Egg advice has flipped over the decades. We explain the difference between dietary and blood cholesterol and where the science has settled.
- 04Myths & Facts
Is Sitting Really "The New Smoking"?
A viral comparison examined for what's fair and what's overblown. We weigh the sitting research, the strained smoking analogy, and the useful takeaway.
- 01Nutrition
Is Breakfast Really the Most Important Meal of the Day?
We trace the famous breakfast slogan back to its roots and weigh what the evidence actually supports about the morning meal.
- 04Myths & Facts
Do We Only Use 10% of Our Brains?
A stubborn pop-science myth, debunked with basic neuroscience. We trace where it started, what brain imaging shows, and why it refuses to die.
- 04Myths & Facts
Does Going Outside With Wet Hair Make You Sick?
A grandmother-approved myth, examined. We separate viruses from cold air and explain why colds really rise in winter, and the grain of truth involved.
- 04Myths & Facts
Will Cracking Your Knuckles Give You Arthritis?
A classic warning, checked against surprisingly clear evidence. We explain what the cracking sound is and what the research actually found.
Sections
- Nutrition What the research actually says about food, diets, and eating well. 9 explainers
- Supplements Clear-eyed reviews of what works, what's hype, and what to skip. 8 explainers
- Hydration Fluids, electrolytes, and the evidence behind staying hydrated. 5 explainers
- Myths & Facts Debunking wellness claims and separating real science from marketing. 12 explainers
Standards & corrections. Wellness Explained is an independent publication. Every explainer is reviewed against primary sources and written to answer a single question plainly. Our articles are general information, not medical advice — consult a qualified clinician about your individual circumstances. Spotted an error? Write to [email protected].