Palm-cooling devices—designed to help humans bounce back quickly from exertion and heat stress by chilling their palms—are showing up on sidelines, in training camps, and wherever the heat is on.

I’ve tested dozens of home soda makers over the course of several years and still haven’t figured out why so many companies ...

Keep a bottle in every room of your house to whiten teeth, clean mirrors, prevent stains, and more. The post 17 Hydrogen ...