ScienceInsights

Body fat obesity thresholds vary by sex and age. Learn what percentage raises health risks and how it compares to BMI and waist measurements.

Vaginal itching is usually caused by yeast infections, BV, or irritants. Learn what's behind the itch and how to find relief.

400 mg of CoQ10 is generally well-tolerated, but there are side effects, drug interactions, and absorption tips worth knowing before you start.

Persistent eye bags are often caused by fat pads, genetics, or bone loss — not poor sleep. Learn what actually works and what doesn't.

Early athlete's foot often starts as mild itching or peeling between the toes. Here's how to spot it and treat it before it spreads.

Weighted blankets may improve sleep for some people, but the evidence is mixed. Here's what research says and what to realistically expect.

Belsomra typically starts working within 30 minutes and lasts around 7–8 hours, though your dose, age, and metabolism can affect both timing and results.

TSH levels vary by age, pregnancy, and health status. Learn what numbers are considered high, what causes them to rise, and when treatment is usually needed.

Ringworm can look different depending on where it appears. Learn the common signs, how it's diagnosed, and what sets it apart from similar skin conditions.

The B measurement on glasses refers to the vertical height of the lens. Here's why it matters, especially if you wear progressive lenses.