Scientists have created a skin implant they say could one day be used to help detect some of the most common cancers. It works by looking for elevated levels of calcium in the blood, which is linked to some cancers. When these levels go above a threshold, a response is triggered by the implant, leading the skin to form a brown mole.
A lot of us drink. Too many of us drink a lot. Worldwide, each person 15 years and older consumes 13.5 grams of pure alcohol per day, according to the World Health Organization. Considering that nearly half of the world doesn't drink at all, that leaves the other half drinking up their share.