(A basic need for most humans is to have seven hours of free time every day, but the average person nowadays (2013) only manages four hours, 14 minutes.
In 1995, people had six hours and 57 minutes downtime, by 2000 that was reduced to six hours and 34 minutes. but nowadays it's a measly four hours, 14 minutes. The culprit? Technology. So go on, switch off your computer and go and sit on the couch, or go and chill out in the garden, if you don't have a garden, take a walk in the park to feed the swans and get some fresh air.)