What can be more soothing and relaxing than a hot bathtub filled with bubbles? Very few people don't like taking a bath... But what if you became a Mer-Man and spent a month in a bathtub? Let's take a look at the potential of human evolution in water. Your skin will change, you'll have different sleep cycles. Even your diet will change significantly! Learn more about your ad choices. Visit megaphone.fm/adchoices