theboneylibrarian:

tilthat:

TIL cracking your knuckle joints doesn’t give you arthritis. Dr Donald Unger cracked the knuckles on his left hand, twice a day for 50 years but not on his right hand. He proved his mother wrong and received the Ig Nobel Prize for his research

via ift.tt

But most importantly

HE PROVED HIS MOTHER WRONG.

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