› added 11 months ago

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TIL that Orthostatic Hypotension is the term for low blood pressure that can cause dizziness or fainting when rising quickly after sitting or laying down after long periods of time.

Read more mayoclinic.org

via reddit.com

JlA1 TIL that, to stop the theft of trees in public parks near Christmas time, some cities spray would-be Christmas trees with fox urine. It freezes and is odorless outdoors, but would be unbearable and irremovable if taken into someone’s home.
0ajR TIL that women using birth control pills blinked 32% more often than those not using the contraception.
p8ybN TIL that Roger Fenton's 1855 Crimean War photo series is the first historic attempt to portray a war campaign with the help of photography
OJ9e TIL breathing the air in Beijing is equal to smoking 21 cigarettes a day in health effects.
xwZk TIL that nobody other than its owners really know who owns IKEA. Parts of it are owned by multiple shell corporations, and many of the stores themselves are technically owned by a non-profit charitable organization and thus do not pay taxes on their income.