Why Exercise is Important for Older People? The NHS recommend that adults do at least 150 minutes of moderate aerobic activity every week and exercise the major muscles on two or more days a week. Dr Justin Varney, lead for adult health and wellbeing at Public Health England said: “Doing 150 minutes a week cuts the chances of depression and dementia by a third”. Studies have shown that when old age people exercised: Memory skills were improved; The risk of some diseases, incl