› added 1 month ago

7

TIL the longest vein in the human body, the great saphenous vein (GSV), is not needed for normal blood circulation in the leg due to collateral circulation and is thus often removed and repurposed as an autotransplant during coronary artery bypass operations.

Read more wikipedia.org

via reddit.com

d8ndr TIL about Sleeping Beauty Syndrome, an extremely rare illness, which causes episodes of being mostly asleep for weeks at a time. If awake during an episode, sufferers are confused about what is real and what is a dream. The condition appears in adolescence and resolves itself 10-15 years later.
9wbVB TIL the term "fragging" originated during the highly unpopular Vietnam War, when U.S. soldiers would kill a fellow soldier, usually a superior, using a fragmentation grenade to make it look accidental.
D1YWY TIL taking caffeine with acetaminophen triples the amount of toxins produced in the liver.
5VLe9 TIL that trees can communicate with each other through a network of underground fungi, known as the "Wood Wide Web," to share nutrients, warn of dangers, and even support sick or dying trees.
RRmj TIL I learned there is a tower in Japan that has a highway passing through its 5th, 6th, and 7th floor.