Q: Is concentrating at work enough to keep my mind healthy? 

A: Current consensus is that the brain needs a minimum of 30 minutes of challenging mental exercise or stimulation every day. Watching non-educational TV and movies does not count. If your work involves repetitive routines, concentration may help you to avoid mistakes and accidents, but it may not be challenging your brain to learn new information. Before or after work you could read or listen to audiobooks, take a class for fun (if you are not in school), play a musical instrument, and so on. Travel is good for the brain. It thrives on variety and loves to learn new things. Be creative!