IF YOU are an ageing couch potato, you should seriously consider putting this article aside, getting off your backside and doing something more energetic instead. It seems that taking up exercise can rejuvenate your brain even in old age – if research on mice is anything to go by.
There is no shortage of evidence that lifelong exercise is good for the brain. For instance, habitual exercisers suffer less brain-tissue loss when they grow old than less active folks, and seniors who are physically fit do better on cognitive tests than those who aren’t. A few years ago, it was shown…
