ScienceInsights

Ivermectin can be safe for cats at the right dose, but small miscalculations or a genetic mutation can make it toxic. Here's what owners need to know.

Vaginal dryness is common and treatable. Learn what causes it and which moisturizers, lubricants, and prescription options can help.

Learn how to rinse your sinuses safely at home, from choosing the right device to using water that won't put your health at risk.

Salt substitutes can lower blood pressure, but they're not right for everyone. Learn how they work, the different types, and who should use them with caution.

Most bruises heal in 2–4 weeks, but age, medications, and nutrition can slow that down. Learn what's normal and when to see a doctor.

From irregular periods to brain fog and joint pain, here's what perimenopause actually feels like day to day and how it's identified.

Itchy armpits are usually caused by something fixable. Learn how to identify the trigger, get relief, and stop it from coming back.

A heart rate of 120 BPM can be totally normal or a sign something's off. Learn what context matters and when it's worth talking to a doctor.

Learn how insulin resistance develops in your body, from faulty cell signals and excess fat to inflammation, liver dysfunction, and what actually helps.

High blood pressure has many causes, from aging arteries and kidney function to sleep apnea, genetics, and everyday lifestyle habits.