Biology Insights

Liver healing after alcohol depends on the damage done. Fatty liver can recover in weeks, but cirrhosis may be permanent. Here's what to expect after quitting.

White bumps on your tongue are usually harmless lie bumps or canker sores, but here's how to tell what's going on and when to see a doctor.

A blood pressure of 98/66 is generally healthy, but can sometimes cause symptoms. Learn when low-normal readings are fine and when to pay closer attention.

Multiple mental health diagnoses are surprisingly common. Learn why disorders often overlap, which ones cluster together, and what it means for treatment.

Light spotting at 12 weeks can be alarming, but it's often harmless. Learn what causes it, when to call your doctor, and how to tell normal from concerning.

When a cold starts, timing matters. Here's what the evidence says about zinc, vitamin C, echinacea, and other remedies worth trying early on.

When your stomach is off, what you eat makes a real difference. Here's what to reach for and what to avoid while you recover.

Learn the key signs of diabetes, who should get tested, and how doctors actually diagnose it — including what prediabetes means for your health.

The follicular phase starts your menstrual cycle. Learn how estrogen shifts, what happens in your body, and how long this phase typically lasts.

That gritty, scratchy feeling in your eye has several possible causes. Here's how to find relief and when to see a doctor.

Pregnancy tests don't always turn positive right away. Learn when hCG levels are detectable and how cycle timing and test sensitivity affect your results.

A bump near your clitoris is usually harmless, but knowing whether it's a cyst, ingrown hair, or something that needs a doctor can bring real peace of mind.

Stomach pain during pregnancy is often normal, but some causes need prompt care. Learn what's typical and which symptoms to take seriously.

Cold sores typically heal in 5 to 15 days. Learn what happens at each stage, when you're most contagious, and how treatment can shorten the timeline.

Certain foods support blood flow, hormone balance, and energy in ways that can improve sexual stamina over time. Here's what the science says.

Learn how to tell when a yeast infection has cleared up, how long treatment takes, and when lingering symptoms are normal versus a sign it's still there.

Excess gas usually comes down to what you eat and how you eat it. Learn the common causes and practical ways to find relief.

Most people on keto aim for 20 to 50 grams of carbs per day, but your ideal target depends on your goals, approach, and where you are in the diet.

DVT can feel like a muscle cramp, but the signs are different. Learn how to recognize a blood clot in your leg and when to see a doctor.