Caffeine seems to be safe for most people, at least up to the amount you’d get from four cups of brewed coffee a day. But that much could make you anxious, disrupt your sleep, or get your pulse racing.
Everyday Mistakes That Are Yellowing Your Teeth
First of all, you need to know that enamel is the outer layer of your teeth and is generally white to whitish-blue-gray according to dentist Harold Katz, DDS, founder of