Heavy Cannabis Use and Brain Function, Mammoth Bone Structure Reveals Clues About Ice Age Hunters, and TDIH - The First Bicycling Club in the US

A new study finds heavy cannabis use can impair brain function during memory tasks and an ancient mammoth bone structure reveals clues about ice age hunters' lives. Plus, on This Day in History, America’s first bicycling club is founded. 

Largest study ever done on cannabis and brain function finds impact on working memory | ScienceDaily

This massive circular structure is made entirely of mammoth bones and skulls. DNA now offers clues about how Ice Age hunters built it | ZME Science

America’s First Bicycle Club | Mystic Stamp Discovery Center

A First-of-a-Kind Bicycle Club Makes Its Debut in Boston – Transportation History

First US cycling club formed | February 11, 1878 | HISTORY

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