ScienceInsights

Dark chocolate can be a genuinely healthy choice, but cocoa percentage, processing, and hidden heavy metals all matter more than the label suggests.

Arteries are thick and pale pink, veins are flat and darker, and capillaries are invisible to the naked eye. Here's what blood vessels actually look like.

At 10 weeks, you're about 2.5 months pregnant and nearing the end of your first trimester. Here's what's happening with your baby and body right now.

Some fruits do more for your cholesterol than others. See which ones are backed by the strongest evidence and how much you actually need to eat.

Learn how to track ovulation using cervical mucus, OPKs, and basal body temperature—and what to look for if you're not sure you're ovulating.

Swollen fingers can stem from salt intake, arthritis, infections, or pregnancy. Learn what different patterns of swelling might indicate about your health.

Learn to identify common insect and spider bites by their appearance, and know which symptoms mean it's time to see a doctor.

From donor insemination to surrogacy and adoption, here's a clear look at the real paths LGBTQ couples take to become parents.

Sweet cravings often come down to sleep, stress, hormones, and gut health. Here's what's actually driving them and how to find some balance.

Food dyes are everywhere, but are they actually safe? Here's what the research says about dyes, kids' behavior, allergies, and why regulators can't agree.