Walk at a pace of 4mph for 90 minutes a week New Delhi, August 08, 2016: Physical activity involving moderate–intensity exercise for 15 minutes a day or 90 minutes a week can reduce deaths from any cause by 14% and increase life expectancy by three years said Padma Shri Awardee Dr KK Aggarwal – President Heart Care Foundation of India (HCFI), Honorary Secretary General IMA and Editor in Chief Asian Journal of Clinical Cardiology. Quoting a study published in The Lancet, Dr Aggarwal said that beyond the minimal amount of 15 minutes of daily exercise, each additional 15 minutes was associated with a further reduction in all–cause mortality risk by 4% and in all–cancer mortality risk by 1%. These benefits of exercise are seen in all age groups, in both sexes, and in persons at risk for cardiovascular disease. The current guideline is to do 150 minutes of exercise per week. Moderate intensity exercise refers to a level of exertion during exercise that raises your heart rate to a point where you sweat and feel you’re working, yet you’re able to carry on a conversation. You can talk, but you can’t sing. Example is walking at a pace of 4mph.