Research conducted by Lancet magazine before the London Olympics led to the shocking result that the same number of people die annually from lack of physical activity as from smoking.
A third of adults are not physically active at all, which causes 5 million deaths annually.
Numerous studies have shown that just 20 minutes of walking or cycling a day can prevent ten percent of deaths caused by breast or colon cancer, diabetes or heart attack.
Therefore, it would not be a bad idea to try to get from work on foot or by public transport, at least to begin with.
Bonus video: