Sleep deprivation

[Tispower]

I'm not exactly sure, but I had to get up ridiculously early when coming back from St. Petersburg, and then the UK is three hours behind, so it was probaly like 20 hours I was awake for, but not that amazing is it lol.

But apparently, as long as you're getting at least 7 hours sleep, apparently you live a few years longer, than you would if you got 8 hours of sleep a night. That was some months ago, so probably won't be able to find the source, so it could be a loada BS frankly.