Biology Insights

Febrile seizures affect roughly 2–5% of young children. Learn what causes them, what to expect, and why most kids outgrow them without lasting effects.

Anxiety is rooted in survival biology, but modern life can push it into overdrive. Here's what's actually happening in your brain when you feel anxious.

BlueChew isn't available over the counter — it contains prescription ED medication. Here's how it works and why a prescription is required.

Ear pain can stem from infections, jaw issues, or eustachian tube problems. Learn what's likely causing yours and when to treat it at home versus see a doctor.

Arthrosis and arthritis sound similar but affect joints in different ways. Learn what sets them apart and why the distinction matters for treatment.

SPF 70 blocks slightly more UVB than SPF 30, but the gap is smaller than you'd think—and it won't protect you from UVA rays.

Mucinex D combines guaifenesin and pseudoephedrine to relieve congestion. Learn what it treats, how long it works, and its common side effects.

Learn to recognize constipation symptoms, from infrequent stools and straining to bloating and beyond, plus signs that warrant a call to your doctor.

COVID contagiousness varies by person and day. Here's what the CDC says about when you're most likely to spread it and when it's safer to be around others.

Learn what actually helps a cough, from honey and steam to trigger management and when it's time to see a doctor.

From the Epley maneuver to balance exercises, here's how to manage vertigo at home and when to seek medical care.

Cefixime is an antibiotic used to treat infections like gonorrhea and UTIs. Learn about its uses, side effects, and what to know before taking it.

BV can be triggered by sex, douching, smoking, and more. Learn what disrupts vaginal balance and why BV tends to recur.

Heel pain usually comes down to a handful of common conditions. Learn what might be causing yours and how to tell them apart.

Omeprazole can help dogs with acid-related issues, but dosage, side effects, and long-term risks vary. Here's what vets recommend.

A blood sugar of 150 means different things depending on when you tested. Learn what's normal fasting vs. after meals, and when to take action.

Nexplanon insertion is a quick in-office procedure. Here's what actually happens, from numbing to placement, and what to expect in the days after.

For most adults, 1,200 calories falls below what the body needs to protect muscle, mood, and metabolism.