You can start at any age. Even at 70 years old should not stay on the couch all day. So even less excuse when you're young.
The second good news
Power is unnecessary, and moderate physical activity, and reduce shortness of breath, simply dope our brains. Sports 30 minutes a day is sufficient to reduce the atrophy of the hippocampus, which is involved in Alzheimer's disease.
The third good news
You can have fun, do not need to change his favorite sport. Any physical activity that every good sport, the key is to move.
Cons, causing activity to keep the effort more physical memory in the form of a series of tap dance or coordination as tai chi or aerobics requires the formation of new connections between nerve cells.
Why deny it?
If the evaluation of the benefits of sport in brain aging, obesity, diabetes, high blood pressure, and we ... Except to say;
To stay in good health, OK, I move.
I did not forget to drink water.