ScienceInsights

Zinc, vitamin C, sleep — what actually helps you avoid getting sick? Here's what the evidence says about popular immune health options.

Ovulation timing depends on your cycle length, not a fixed day. Learn how to identify your fertile window and track ovulation accurately.

Learn about the 11 recognized symptoms of lupus, how doctors use them for diagnosis, and which conditions can look similar.

A 21-inch newborn is slightly above average but well within the normal range. Learn what shapes birth length and whether it predicts future height.

Morning sickness typically peaks around weeks 8–10 and eases by week 14, though it varies. Here's what to expect and what can help.

Daily headaches often have a specific, treatable cause. Learn what's most likely behind yours and when to seek medical attention.

Learn when to drain a toe blister, how to care for it daily, and simple ways to prevent them from forming in the first place.

Nausea is a common side effect of Zoloft, but it usually fades within a few weeks. Learn why it happens and how to manage it.

Ozempic is built for long-term use, but what does that actually mean for your health, your weight, and your options if you stop?

Practical ways to reduce edema, from elevation and compression to diet changes — plus signs your swelling needs a doctor.