ScienceInsights

Seltzer water has some real downsides for teeth and digestion, but many fears about it are overblown. Here's what the science actually shows.

Inflamed gums can often improve at home with the right rinses, brushing habits, and diet changes. Here's what actually helps and when to see a dentist.

Sun poisoning rash can be managed at home with cooling, hydration, and the right OTC treatments — here's what actually helps and when to see a doctor.

Heel pain is usually plantar fasciitis, but other conditions can look similar. Learn what's likely causing yours and what actually helps it heal.

From dark spots to sun damage, learn which treatments actually fade skin discoloration and why sunscreen matters more than you'd think.

Expired bupropion is unlikely to harm you, but reduced potency means it may not manage your symptoms as well as it should.

Opalescence wear times vary by formula and concentration. Learn how long to leave it on, how to manage sensitivity, and what to do after removing the trays.

Bipolar 2 involves more than mood swings. Learn how depression, hypomania, and mixed episodes actually feel for people living with this condition.

Some natural remedies like rosehip oil and aloe vera can genuinely help fade scars — but results depend on scar type and realistic expectations.

Walking can reduce belly fat, but the amount matters. Here's what the research says about weekly steps, calories burned, and realistic timelines.