ScienceInsights

From saline rinses to antibiotics, learn which treatments actually help a sinus infection and when you really need to see a doctor.

From cold packs to electrolytes, these home remedies can help ease migraine pain and reduce how often attacks happen.

Six evidence-based habits—like better sleep, movement, and social connection—that can meaningfully support your mental health outside of therapy.

Most people do physical therapy for 2–3 months after knee replacement, but your timeline depends on progress, not a fixed schedule.

Sildenafil works best when taken 30–60 minutes before sex, but food, timing, and a few other factors can affect how well it performs.

One beer raises your BAC differently depending on your weight, sex, and whether you've eaten. Here's what the numbers actually look like for most people.

From topical gels to injections and supplements, here's a practical look at the most common knee pain treatments and how to choose what's right for you.

First Response tests are among the most sensitive available, but timing, usage, and biology all shape how accurate your result really is.

Find practical remedies for dry and wet coughs, from honey and hydration to herbal options, plus when to see a doctor.

Iron and vitamin D have the strongest links to hair loss, while biotin is mostly overhyped. Here's what the evidence actually says about vitamins for hair growth.