Biology Insights

Wet AMD develops when abnormal blood vessels grow beneath the retina. Learn what drives this process, from VEGF to genetics and smoking.

Irregular periods can stem from hormones, stress, PCOS, or thyroid issues. Learn what's normal, what causes cycle changes, and when to see a doctor.

Bezoars are masses that form in the stomach from undigested material. Learn about the types, who's at risk, and how they're treated.

Salves are oil-and-wax skin preparations used for soothing and protecting skin. Learn what's in them, how they differ from balms, and how to store them.

Learn how hunger hormones, food choices, sleep, and meal timing work together to help you feel satisfied and eat less throughout the day.

Some foods can thicken or trigger mucus production. Learn which ones to watch and what to eat instead.

From OTC meds and topical creams to diet changes and exercise, here's what actually helps ease arthritis pain.

Aluminum hydroxide treats heartburn, supports vaccines, and helps kidney disease. Learn how it works and what side effects to watch for.

Herpes sores can look different depending on the stage and location. Learn what to look for, how outbreaks change over time, and how to tell herpes apart from other skin conditions.

Some foods genuinely promote inflammation, while others get more blame than they deserve. Here's what the research actually shows.

Ipratropium bromide helps open airways in COPD and asthma. Learn how it works, what to expect, and when to be cautious about using it.

Gum inflammation is usually caused by plaque, but hormones, smoking, and certain medications play a role too. Here's how to recognize and address the causes.

Plain chicken is low FODMAP, but marinades, broths, and breading can change that. Here's what to watch out for.

Learn how doctors use blood tests like the CBC, iron studies, and blood smear to identify the type and cause of anemia.

Hydroxyzine can help with anxiety, but it works differently than most people expect. Here's what the evidence says and who it tends to work best for.

Pre-workout supplements can be safe, but the details matter. Here's what the science says about caffeine, common side effects, and what to watch out for.

Low blood sugar isn't just a diabetes problem. Learn what commonly causes hypoglycemia, from medications and alcohol to hormone issues and rare tumors.

Planned Parenthood services aren't always free, but many people pay little or nothing. Learn how sliding scale fees, Medicaid, and state programs affect your costs.

Thick chest phlegm is uncomfortable, but simple techniques like huffing, steam, and staying hydrated can help you breathe easier and clear it faster.