ScienceInsights

Smelly gas is usually harmless and tied to diet or gut bacteria, but here's what the odor can tell you about your digestive health.

Stage 4 cancer is usually metastatic, but not always. Learn how staging works, where cancers spread, and what treatment can look like at this stage.

Learn which hormones rise during pregnancy, what each one does, and how they contribute to the symptoms you experience throughout each trimester.

Learn how to care for your nose after a nosebleed, including what to avoid, how to stay moisturized, and when to see a doctor.

Back strain heals faster with the right approach. Learn what actually helps, what to avoid, and what a realistic recovery timeline looks like.

From St. John's Wort to exercise and omega-3s, here's what the evidence actually says about natural antidepressants and how well they work.

Pain behind the eyes can stem from tension headaches and screen time to rarer causes like glaucoma. Learn what's likely behind yours and when to seek care.

Pulmonary arrest means breathing has stopped completely. Learn what causes it, how to spot early warning signs, and why quick action affects survival.

Orgasms offer some surprising health perks, from pain relief and better sleep to heart health and a stronger immune system.

Poor sleep usually comes down to a few fixable causes — from caffeine and light exposure to stress and bedroom conditions. Here's what the science says.