Researchers at the University of South Florida and Fudan University in China found Tai Chi increases brain volume in seniors who practised Tai Chi three times a week for 40 weeks. The study’s results are pretty impressive, since grey matter usually shrinks with age. A study at the University of Massachusetts Centre for Mindfulness found similar results in even less time. Their researchers saw increases in grey matter in the hippocampus (the brain region associated with learning and memory) after an eight-week mindfulness-based stress reduction program. Huffington Post, August 12, 2014