Coffee is one of the most controversial drinks on Earth. Though it was first introduced centuries ago, scientists all over the world haven't yet stopped discussing it. Some people claim it to be the only source of energy while the others blame this drink for its bad effect on teeth and heart. Commercials assure us that only a cup of hot coffee can make us solve difficult problems at work while naive old ladies grumble that coffee is similar to drugs. So it there a way to put an end to all of these arguments? Or should we just figure out some other ways to use coffee? This video will help you make up your mind and answer the crucial question: to drink or not to drink?