ScienceInsights

Positive affect and optimism sound similar, but one is about how you feel now and the other about what you expect ahead—and both shape your health differently.

Not all teeth discoloration responds to the same treatments. Learn which whitening methods actually work based on what's causing your stains.

Cheese pizza has fewer calories and less sodium than pepperoni, but the difference may matter less than what else is on your plate.

Learn how to safely practice lotus pose with proper prep stretches, common mistakes to avoid, and who should skip it altogether.

RockTape is a stretchy kinesiology tape used to ease pain, reduce swelling, and support muscles and joints during movement and recovery.

Broccoli rabe can fit into a low FODMAP diet in the right portions. Learn what a safe serving looks like and how to enjoy it with less digestive trouble.

Learn the right Alka-Seltzer Cold and Flu dosing schedule, why daily limits exist, and who should use it with extra care.

What you eat before a dental appointment can affect your comfort and care. Here's what to choose, what to skip, and why timing matters.

Everything you need to safely wear monthly contact lenses, from inserting and removing them to cleaning routines and knowing when to stop wearing them.

Find out which CPAP machines run the quietest, what causes noise, and how your mask and hose play a bigger role than you might expect.