"spark" on amazon
A word to the wise is sufficient
1. Exercise is the only significant tool you have to increase your metabolism. A male's diet used to be 2000 calories a day, predicated on a lot of physical work. This diet will make most males overweight or obese at today's low level of exercise. if you want to eat more than a bare minimum of food you need to move.
2. Personally, exercise doubled my HDL level. My bloodstream lipids have been shifted in a positive direction for cardiovascular health.
3. If your heart stopped exercising you'd be dead. Our other muscles should be used the same way: involuntarily, without a thought, nearly continuously while we're awake.
Wrong question. The right question, what about living a sedentary lifestyle makes it so unhealthy: http://www.ncbi.nlm.nih.gov/pmc/articles/PMC285752...
Exercise is the solution to prevent sedentary lifestyle. And the data is pretty clear, some is good, more is better. The threshold for too much activity is quite high for humans. However to prevent injury one must slowly increase their activity. But with proper rest and recovery it is almost impossible to exercise too much.