Study Suggests Becoming An Expert Bird Watcher May Protect Brain Health

Research found that participants who were expert bird watchers showed “differences in both brain structure and brain activity.”

Study Suggests Becoming An Expert In This Beloved Hobby May Actually Protect Your Brain

Research found that participants who were experts in this pastime showed "differences in both brain structure and brain activity."

HuffPost
Is it becoming an expert in any hobby or just that one? Because I have a couple hobbies I’m an expert in, one I am two heartbeats away from being the world authority in, and I don’t think it’s helped my brain.
Are those heartbeats someone else’s and are they now dead? Also what hobby? This peaked my interest a lot.
yes they are other peoples, and no they are not yet dead.