Poor sleep and memory changes often show up together. New research suggests one familiar vitamin may matter more than expected during this early window of cognitive change — but the dose linked to the strongest result may surprise you.

Researchers restored a fundamental process inside severely damaged brains, and what happened next challenged assumptions about how permanent Alzheimer’s damage may be. The finding points toward an overlooked piece of the puzzle.

Always tired or struggling to stay motivated? That can sound an awful lot like chronic fatigue. New research points to a blood marker that may help explain why — and it’s one already linked to heart and brain health.

You may buy “clean” shampoo, fragrance-free lotion or non-toxic cleaners to limit what comes into your body and your home. But lab testing of everyday products found far more chemicals than their labels revealed. Here’s what that means for making smarter choices.

For decades, you probably chose low-fat milk and yogurt to protect your weight and cholesterol. But when researchers had people eat three servings of full-fat dairy every day, what happened wasn’t what conventional wisdom would predict…

Body fat, belly fat and muscle are often top of mind when we think about diet and healthy aging. But a new study suggests your daily coffee habit may be influencing all three — along with your metabolism.

If you have hypothyroidism but still wake up exhausted, your thyroid may not be the only reason. Nearly half of people with low thyroid also had sleep apnea. That’s an overlap that can steal your deep sleep and raise heart risks.

Something starts changing in your brain’s memory center around 50. Scientists have uncovered a shift that may help explain why the aging brain becomes more vulnerable, and what steps we can take to protect it.

Belly fat becomes increasingly common as we age. But researchers have discovered something that could make it far more dangerous: having too little of one important vitamin at the same time.

The American Heart Association has a running list on how to achieve optimal heart health. As a nation, we’ve got a lousy score. But an unexpected finding of adhering to this list doesn’t just mean a higher score… it can help you turn your age back as much as 6 years.

Three common midlife health risks may quietly chip away at your dementia-free years. Research suggests the difference could add up to nearly 13 years — and the good news is, these are risks you can do something about…

Most of us think heart attack risk comes down to clogged arteries. But a more immediate threat may be plaque that’s vulnerable to rupture. The good news? Several of the risks tied to dangerous plaque are ones you can change.