ScienceInsights

Omega-3s can support heart health, mood, and brain development — but not all types work the same way. Here's what the evidence actually shows.

Hemoglobin A1c shows your average blood sugar over months, not just one moment. Here's what the numbers mean and what actually changes them.

Wegovy is FDA approved for both weight loss and heart health. Learn who qualifies, how it works, and how it compares to Ozempic.

Learn the four-step hand signal for help, where it came from, and what to do if you spot someone using it.

Anxiety has real biological and psychological roots, from genetics and brain chemistry to sleep, stress, and early life experiences.

Frequent acid reflux often comes down to specific physical and lifestyle factors. Learn what's actually driving your symptoms and when to see a doctor.

Nighttime itching has real biological causes, from shifting body temperature to reduced itch-suppressing signals in the brain. Here's what's behind it and how to find relief.

40 mg of caffeine is a relatively small dose, but sensitivity varies. Learn who might feel it most and where it commonly shows up.

Waking up with a stiff neck often comes down to sleep position, pillow support, or an underlying issue. Here's how to find relief and prevent it.

Learn what ostomy bags do, the differences between colostomy, ileostomy, and urostomy, and what daily life looks like for people living with one.