Do you sit for long periods of time either at work or at leisure – say watching movies? There are a couple of reasons why this isn’t so good.
First of all, it increases inflammation. To combat this, get up every 10-15 minutes and do something. Even if it is just to get a cup of coffee, this will get your muscles moving.
Secondly, chairs with backs weaken out backs and abdominal muscles. So try spending some time sitting upright without the help of the chair back.
The American Heart Associaation would like you to get 150 minutes/week of moderate activity OR 75 minutes/week of vigorous activity. Moderate activity is defined as brisk walking such that you can carry on a conversation. Vigorous activity is defined as jogging or running where you can only say a few words before you feel the need to stop and take a breath.