Hot Gadgets and Technology

Here’s the rap sheet on gum: It may cause pressure headaches or jaw pain, create gas (at either end, unfortunately), sound annoying to people around you and terrorize the bottoms of shoes. But as long as you’re chomping on the sugarless kind, it’s...

Tennis is a terrific workout:  You can burn major calories sprinting to return a killer shot, and tone your arms while volleying and serving. But if you want more intense exercise, try cardio tennis. Never picked up a racket? No problem. This is a...

Despite scary headlines, most people can keep sipping from the tap. The EPA says water with 0.7 to 1.2 mg of fluoride per liter is safe, and most public water supplies are  well within that range. Moderate amounts of fluoride strengthen tooth...