So the article referenced below is aimed at those who are 60 years of age and sit for long periods of time could affect your health. However I think this should be aimed at us of a younger age too, because sitting down without regular breaks is not good for circulation.
So here is what I propose you think about during your day. Stand up and walk about as much as possible ( without getting into trouble from your boss.) Park in spaces further away from the supermarket entrance. Stand up when talking on the phone. Try including these tips into your daily routine and you will increase your blood circulation :)
Reference - Daily Mail - http://www.dailymail.co.uk/health/article-2563376/Sitting-extra-hour-day-youre-60-doubles-risk-disabled-moderate-exercise.html