The World Health Organization, WHO, has identified some interesting myths about Physical Activity:
Physical activity can be done almost anywhere and does not necessarily require equipment! ... Walking is perhaps the most practised and most highly recommended physical activity and it is absolutely free. It is not imperative to go to a gym, pool or other special sports facility to be physically active..."
It only takes 30 minutes of moderate-intensity physical activity five days per week to improve and maintain your health. ...The activity can be accumulated over the course of the day: a 10 minute brisk walk, three times a day; or 20 minutes in the morning and 10 minutes later that day....
Even if you are very busy - you can still fit 30 minutes of physical activity into your daily routine to improve your health."
Each day children and youth aged 5 to 17, should accumulate at least 60 minutes of moderate- to vigorous-intensity physical activity to ensure healthy development. However, physical activity levels are decreasing among young people in countries around the world, especially in poor urban areas.
This decline is largely due to increasingly common sedentary ways of life. ...
Consequently, improving physical activity levels in young people is imperative for the future health of all populations."
More at https://www.who.int/dietphysicalactivity/factsheet_myths/en/ (visited 7/5/2019)