The bottom line (no pun intended) is that we, as a nation, sit down way too much. We're just as guilty as the next person of sitting down at our desks for nine hours straight to then go home and sit in front of the TV for another three hours.
A fantastic video by AsapSCIENCE has revealed what happens to your body if you don't go outside. In short, leading a more sedentary lifestyle leads to premature death.
It reveals the chain reaction that sunlight has on your body - with vitamin D, the cholesterol in your body is then able to help the body absorb calcium - and if you don't tend to go outdoors, it can massively impact your immune system, which has a knock on effect on cancer, heart disease and depression.
"Being in nature had a mental and physical effect on the body," they say.
So down your tools, and step outside for a breather.