I'm sure you've heard of Narcolepsy, a not very common sleep disorder. However, the people who suffer from it can't lead a normal life. Watch the video about an Englishman suffering from it.
Here you have a different approach to STRESS by Kelly McGonigal, a famous health psychologist, who has recently made a scientific research on the benefits of stress. See if you can tell me about them. Click on the link below to watch the video.