› added 11 years ago

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TIL there is a rare disorder where a woman bleeds through her eyes during menstrual periods.

Read more ncbi.nlm.nih.gov

via reddit.com

EgkMx TIL that sperm can remain viable inside a woman's vagina for up to 5 days.
Ooxra TIL despite being a popular trope in crime fiction, it's basically impossible to quickly incapacitate someone with a chloroform-soaked rag. It generally takes about 5 minutes of inhaling the substance to render someone unconscious
oBE08 TIL elite chess players lose 10 to 12 pounds, on average, over the course of a 10-day tournament.
MYdb TIL twins separated at birth, one raised by a German Catholic Nazi family and the other by a Jewish family in Trinidad, both as adults flushed the toilet before and after going, enjoyed sneezing in elevators to startle people, dipped buttered toast in coffee, and wore rubber bands on their wrists.
M7en8 TIL that on the atoll of Pinglelap, 10% of the population is affected by total colorblindness, with another 30% being unaffected carriers of the gene. This is due to a population bottleneck caused by a typhoon in 1775 that left 20 survivors on the atoll. One carried the colorblindness gene.