How Much Should You Exercise?

Hello friends! let us discuss the importance of physical exercise. physical inactivity is the greatest public health problem of the 21st century but actually physical inactivity ranks down at number five in terms of risk factors for death in the United States and number six in terms of risk factors for disability. we've learned diet is by far our greatest killer followed by smoking of course that doesn't mean you can just sit on the couch all day exercise can help with mental health cognitive health sleep quality cancer prevention immune function high blood pressure and lifespan extension if the u.s. population collectively exercised enough to shave just 1% off the national body mass index 2 million cases of diabetes one and a half million cases of heart disease and stroke and a hundred thousand cases of cancer might be prevented . ideally how much should we exercise the latest official physical activity guidelines recommend adults get at least 150 minutes a week of moderate aerobic exercise which comes out to be a little more than 20 minutes a day that's actually down from previous recommendations from the Surgeon General in the CDC and American College of Sports Medicine which recommended at least 30 minutes each day. The exercise authorities seem to have fallen into the same trap as the nutrition authorities recommending what they think may be achievable rather than simply informing us. what the science says and letting us make up our own mind they already emphasize that any physical activity is better than none so why not stop patronising the public and just tell everyone the truth it is true that walking 150 minutes a week is better than walking 60 minutes a week. following the current Recommendations for 150 minutes appears to reduce your overall mortality rate by 7% compared to being sedentary walking for only 60 minutes a week only drops your mortality rate about 3% but walking 300 minutes a week drops overall mortality by 14% so walking twice as long 40 minutes a day compared to the recommended 20 yields twice the benefit and an hour-long walk each day may reduce mortality by 24%. walking as an example . it's an exercise nearly everyone can do but the same goes for other moderate intensity activities such as gardening or cycling this meta-analysis of physical activity dose and longevity found that the equivalent of about an hour a day of brisk 4 miles per hour walking was good but 90 minutes was even better. what about more than 90 minutes unfortunately so few people exercise that much every day that there weren't enough studies to compile a higher category okay but if we know 90 minutes of exercise a day is better than 60 minutes is better than 30 minutes why is the recommendation only 20 minutes I understand that only about half of Americans even make the recommended 20 minutes a day. so the authorities are just hoping to you know nudge people in the right direction it's like the Dietary Guidelines advising us to eat less candy if only they'd just give it to us Happy walking

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