Their prescription for exercise was unchanged from their 2008 recommendations. They recommend 2.5 to 5 hours of moderate to vigorous exercise per week. This can also be expressed as 500 to 1000 Met-minutes per week. "Moderate" is defined as exercise requiring between 3 and 5.9 METS and "vigorous" as greater than 6 METS.
To put those numbers into perspective , consider than it would require about 7 METS to run a fifteen
The publication also offers evidence of a risk reduction for dementia and depression.
If the benefits of exercise could be achieved by a daily pill, everyone would be taking it.