I get the point, but the reality is playing outside with my kids or hiking with them is not going to provide me with the exercise level necessary for fitness. T

I get the point, but the reality is playing outside with my kids or hiking with them is not going to provide me with the exercise level necessary for fitness. The more research I do the more I find that a truly healthy adult needs far more exercise than most think (10+ hours) and at a much higher intensity for about 20% of that than most think.