ScienceInsights

Chronic inflammation is linked to serious disease, but diet, exercise, sleep, and a few other evidence-based strategies can help bring it under control.

A sore nose inside can usually be eased with saline sprays, added moisture, and a few simple habits that keep nasal tissue healthy.

Nicotine withdrawal peaks in the first 72 hours, but some symptoms linger for weeks. Here's what to expect and when it gets easier.

Wondering why your mosquito bite is so red? Learn how to tell the difference between a normal reaction, an allergy, and a possible infection.

From hives to swollen eyes, learn how allergic reactions appear on the skin and how timing and skin tone affect what you see.

Learn how your brain and spinal cord work together to control movement, thought, and sensation, and what happens when the CNS breaks down.

Light spotting during pregnancy can be normal, but not always. Learn what causes it, how it differs from bleeding, and when to call your doctor.

Learn the key symptoms of type 1 diabetes, why they're often mistaken for other illnesses, and which warning signs need urgent medical attention.

Pepto-Bismol treats more than an upset stomach. Learn what it actually helps with, who should avoid it, and why it turns your tongue black.

Ingrown hairs can feel like a tender, itchy bump under the skin. Learn how to recognize the symptoms and tell them apart from pimples or infections.