Safest thing is to not let yourself get to the point where you don't feel like doing anything. When you feel like this get up and start doing something really fun!
We rest Depression to share correct from yesteryear:
Today is: 21st September (GMT), in history on the 21st of September, 1946 AD the following death happened:
Leo Bittermieux: Flemish Missionary (Congo), dies at 66