Which daily exercise are helpful to maintain health for long? And in what amount we need to do that? How much Yoga is helpful for physical and mental health?
1 Answers
For Yoga, modern science says do 54 sets = 108 reps of Surya Namaskar. Of course you need to gradually build your stamina to increase reps.
My great-grandfather did 2 hours of yoga in morning, and lived to nearly 100 years. Also ate nuts, fruits, teas, water. This is according to my dad. Not modern science, just things about family members that get passed down from generation to generation :-)
According to American Health Association
AHA Recommendation
For Overall Cardiovascular Health:
At least 30 minutes of moderate-intensity aerobic activity at least 5 days per week for a total of 150
OR At least 25 minutes of vigorous aerobic activity at least 3 days per week for a total of 75 minutes; or a combination of moderate- and vigorous-intensity aerobic activity
AND Moderate- to high-intensity muscle-strengthening activity at least 2 days per week for additional health benefits.
For Lowering Blood Pressure and Cholesterol An average 40 minutes of moderate- to vigorous-intensity aerobic activity 3 or 4 times per week

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Welcome to Health SE. I like the second source that you give, but the first two cannot really be backed up by science, which we strongly encourage on this site. Could you possibly add in sources to back up the yoga information you give? – michaelpri Sep 04 '15 at 01:40
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