Biology Insights

Mirena IUD has over 99% effectiveness, lasts up to 8 years, and can reduce heavy periods. Here's what the research says about how it works.

Heel pain can stem from several different causes depending on where it hurts. Learn what's likely behind your discomfort and what can help.

Rabies in U.S. dogs is rare thanks to vaccination, but it remains a serious risk in many parts of the world. Here's what the data shows.

Green diarrhea is usually harmless and linked to diet or bile, but some causes need attention. Here's what's likely behind it.

Simple, science-backed habits like walking after meals, adjusting eating order, and better sleep can help keep your blood sugar steady throughout the day.

Your blood pH stays tightly regulated, but diet and lifestyle still affect acid load. Here's what actually helps your body manage acidity.

From staying hydrated to knowing which foods help, here are practical remedies for upset stomach and diarrhea that can ease symptoms and speed recovery.

Learn how urushiol causes poison ivy reactions, why the rash appears to spread, and why washing within 10 minutes can make a real difference.

Posterior tibial tendonitis can often be managed at home, but some cases need more. Here's what treatment options actually work and when surgery makes sense.

Foot swelling has many causes, from sitting too long to heart disease. Learn what's behind edema and which signs mean it's time to see a doctor.

Piriformis syndrome causes deep buttock pain that can radiate down the leg. Learn what the discomfort actually feels like and how it differs from other sciatica.

Health guidelines recommend breastfeeding for at least a year, but every family is different. Here's what to expect at each stage, from newborn to weaning.

Inflammatory breast cancer is rare but aggressive. Learn who's most at risk, why it's often mistaken for infection, and what the diagnosis means for survival.

A practical guide to muscle-building supplements that actually work, like creatine and protein, and the ones that aren't worth your money.

High blood pressure is more than a passing condition—here's why doctors classify hypertension as a disease and what that means for your health.

From ibuprofen and magnesium to pickle juice and TENS units, here's what actually helps with period and leg cramps—and when to see a doctor.

Science-backed ways to support nerve healing, from exercise and diet to supplements like B12, alpha-lipoic acid, and lion's mane mushroom.

Steroid withdrawal can last days to months depending on the type and how long you've used them. Here's what symptoms to expect and how recovery typically unfolds.

Heartburn can point to GERD, a hiatal hernia, pregnancy, or even certain medications. Learn what's likely causing yours and when to see a doctor.

Ozempic and Wegovy share the same active ingredient but differ in dosing and approved uses. Here's what to consider when talking to your doctor.