Can marijuana boost learning and memory as we get older?

In some cultures, it’s traditional for elders to smoke grass, a practice said to help them pass on tribal knowledge. It turns out that they might just be onto something.

Teenagers who toke perform less well on memory and attention tasks while under the influence. But low doses of the active ingredient in cannabis, THC, might have the opposite effect on the elderly, reversing brain ageing and restoring learning and memory – at least according to studies of mice.

“We repeated these experiments many times,” says team leader Andreas Zimmer at the University of Bonn, Germany. “It’s a very robust and profound effect.” 

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Michael Le Page ~ NewScientist.com ~