Biology Insights

Burning eyes can have several causes, from dry air to chemical exposure. Learn how to find relief and when to see a doctor.

Some people never feel drowsy from Benadryl. Here's why genetics, tolerance, caffeine, and brain chemistry can all affect how the drug hits you.

From magnesium citrate to squatting positions, here are the most effective ways to relieve constipation quickly and what to try first.

From estrogen to androgens, learn what hormones females produce, how they work together, and how they shift through pregnancy and menopause.

Soothe a scratchy throat at home with salt water gargles, honey, steam, and more — plus signs it's time to see a doctor.

Heart failure develops when the heart can't pump enough blood, often due to high blood pressure, artery disease, diabetes, or genetics. Here's what raises your risk.

Midol and Tylenol both contain acetaminophen, but Midol adds extras that matter — especially if you're taking both at once.

That plugged-up feeling in your ears has several common causes, from earwax to altitude changes, and most can be relieved at home.

Peyronie's disease causes penile curvature, but effective treatments exist. Learn which options—from injections to surgery—work best for your situation.

Hangovers are rough, but some remedies actually help. Learn what your body needs to recover faster, from the right fluids and food to safe pain relief.

Condoms protect against both pregnancy and STIs, but how well they work depends on proper use and the right material for your needs.

BV isn't caused by poor hygiene. Learn what actually disrupts vaginal bacteria, from new partners to hormonal shifts, and why it tends to recur.

From fiber-rich foods to fermented favorites, learn which foods support healthy digestion and how to add them to your diet without discomfort.

Beano is generally safe for regular use, but here's what to know about side effects, daily habits, and who should be cautious before taking it often.

Carbohydrates fuel your brain, protect muscle, and support gut health. Here's what they actually do in your body and how much you need.

Swollen feet can stem from long days on your feet or something more serious. Learn what's likely causing yours and how to find relief.

Learn practical tips for pumping breast milk while keeping your supply steady, from flange fit to bottle introduction.

Find out how much slippery elm to take daily, when to take it, and what the research says about its safety and effectiveness.

Small lifestyle changes in diet, exercise, and sleep can significantly lower your type 2 diabetes risk, even if you're genetically predisposed.