Article excerpt: How much exercise do I really need?
Two and half hours a week of moderate intensity exercise is what is recommended by the American College of Sports Medicine and the American Heart Association.
Ideally, this means 30 minutes, five times per week, of activities such as jogging, ballroom dancing, biking or swimming.
Moderate intensity means you're working in the intermediate zone. If you're able to hold a conversation with the person next to you while doing that activity, you're in the zone.
Newer evidence about high intensity workouts known as HIIT (High Intensity Interval Training), shows that intensity minutes reduce required exercise time by almost half.
There are obvious benefits to exercise. People feel better, they look better, and they perform better in all aspects of their lives when they exercise regularly.
Across the spectrum of the human body, irrefutable evidence shows that exercise isn't just about getting a good workout, it's about staying healthy in a broader sense.
Exercise can treat depression, anxiety and sleep disturbances.
For your heart, it lowers blood pressure, cholesterol levels, the risk of heart attack and stroke.
Exercise reduces the risk of inflammatory bowel disease and both prevents and treats type 2 diabetes
Source article: http://edition.cnn.com/2017/03/29/health/how-much-exercise-metzl/index.html