Neurosci shows that 50-yos can have the brains of 25-yos if they sit quietly

Mods: please change the link to the original at https://www.inc.com/melanie-curtin/neuroscience-shows-that-5...

Or, possibly link to the second study in the article (https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3004979/), which, using a controlled trial with 16 treated participants against 17 controls, claims that 8 weeks of meditation at 40 minutes/day can increase the concentration of gray matter in your brain.