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.
Everything You Need to Know About Iron
Pumping iron. Flat iron. Ironing a shirt. There are so many irons in our lives—and yet, do you know if you’re really getting enough of it in your body by