For some, it hurts; for others, it can be pleasurable.
But for this brave individual, an extreme bout of tickling actually causes him to pass out.
Submitting to requests for a demonstration, the victim is held down by two friends as they begin to poke and tickle him under the arms and around his stomach.
After only seconds of laughing and wriggling on the floor, he suddenly goes limp.
The Viral video has since become a hit on Youtube, where it has been viewed over 250,000 times so far.
Unable to believe what they are seeing, his friends gather round to poke and prod their lifeless buddy.
And after lifting his eyelids to reveal the whites of his eyes, the man's friends begin to get a little scared as one repeatedly asks to check his pulse.
But after a minute he wakes up, dazed and confused but otherwise unhurt.