He goes without sleep for 40 days...

It may be the all-nighter of all time, but the Guinness Book of World Records is not likely to credit a record for going the longest without sleep.

Tyler Shields, a 28-year-old photographer from Los Angeles, set out to go 40 days without sleep.

Guinness World Records does not observe such a record because of how dangerous it is, according to AOL News . But that has not stopped Shields, who has enlisted friends as spotters so they can vouch for his accomplishment. More...

Don't miss:

1. Sleepless boy Rhett Lamb sleeps again...
2. The guy who hasn't slept for ... 37years???
3.  Vietnamese man who has not slept for 33 years!!
4. 'Starving yogi' Prahlad Jani astounds Indian scientists...
5. Meet Electricity Mohan, India's human conductor!!!