ScienceInsights

Different diuretics work best for different conditions. Learn how thiazides, loop, and potassium-sparing options compare so you can have an informed conversation with your doctor.

Learn how your diet affects your vision, from vitamin A deficiency causing night blindness to the eye risks of eating too much meat.

From semen analysis to ovarian reserve testing, here's what fertility evaluations actually involve for both men and women.

Heineken 0.0 has fewer calories than regular beer, but is it actually good for you? Here's what the nutrition label and research really say.

Migraines involve brain chemistry, hormones, and genetics working together. Learn what actually sets them off and why some people are more vulnerable than others.

Practical, research-backed steps to support fertility for both partners, from timing and diet to supplements and knowing when to see a specialist.

Eyelid dermatitis isn't contagious—it's a skin reaction with manageable causes. Learn what triggers it and how to soothe and prevent flare-ups.

Your period cycle changes throughout your life. Here's what's considered normal at every stage, from your teens to perimenopause.

Vaginal itching is usually caused by something treatable. Learn about common causes, from yeast infections to hormonal changes, and when to see a doctor.

Heavy periods can stem from hormones, fibroids, or other conditions. Learn what counts as heavy bleeding, common causes, and when to see a doctor.