ScienceInsights

A positive pregnancy test doesn't always mean pregnancy. Learn the medical and hormonal reasons a test can show a false positive result.

Practical steps to manage periodontal disease at home, from better brushing technique to diet changes that support healthier gums.

Expiration dates on milk are less precise than you think. Learn how to tell if your milk is actually safe to drink using smell, appearance, and fridge temp.

Most people don't need more than one Liquid IV packet a day. Here's what's actually in it and when it makes sense to use.

Ringing ears and dizziness often share a common cause in the inner ear. Learn about the conditions most likely behind these symptoms and when to see a doctor.

Find out which OTC creams and lotions actually help heat rash, what to avoid putting on your skin, and when it's time to see a doctor.

Science-backed ways to release painful memories, from rewiring old thoughts to practicing self-compassion and forgiveness on your own terms.

Knee pain from running often comes down to a few fixable causes. Learn what actually helps, from exercises and stretches to form tweaks and footwear.

Learn which fruits and vegetables are highest in fiber, why fiber type matters, and how to add more to your diet without digestive discomfort.

Gum sores can look quite different depending on their cause. Learn how to tell canker sores, abscesses, and other common types apart.