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TIL men who pee while sitting down more effectively empty their bladders thereby reducing the risk of prostate cancer.

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WkKxo TIL About the rectoanal inhibitory reflex (RAIR), which is what provides the upper anal canal with the ability to discriminate between flatus and fecal material. It allows for voluntary flatulation without also eliminating solid waste.
EAjW TIL the bones of notorious Auschwitz doctor and SS officer Josef Mengele are used as a teaching aid in medical forensics classes at the University of São Paulo. They were originally exhumed in 1985 in order to confirm his death.
l7WKa TIL longer passwords are considered more secure than more complex passwords. A password of length 20 using only letters and numbers is much more secure than a password of length 15 that uses letters, numbers, and symbols
Bgmlb TIL that fresh meat can have muscle spasms
LQYm9 TIL that the Potomac River near Washington, D.C., is primarily freshwater. However, during extremely high tides or significant storm surges, brackish water—a mixture of saltwater and freshwater will go as far upriver as DC.