Don't settle for 'average'... you know what you need to do... (and start young, if it is not too late, like this first guy!)...   Yes, even the somewhat older folks really benefit from regular training! ...we think he means business! OK, back with the bigger guys now...  

Getting yourself into great shape with regular workouts definitely sharpens up your mind as well - it's called the 'feel-good factor'  As these examples certainly show!