At work:
1. Take a brisk walk at lunch time.
2. Stand up at your feet and stretch every half hour.
3. Walk a little faster.(Imagine you're late at work, that will do.) :-)
4. If you go to work by public transport, get off at an earlier stop and walk the rest of the way.
At home:
1. Get up to switch TV channels instead of using the remote control.
2. Plan a regular, brisk weekend walk.
More tips to help you keep physically fit.
1. Don't cross one leg over the other. Ensure that your feet are on the floor to keep weight off your thighs.
2. Don't lean forward more than you have to. You may not notice it but your head is fairly heavy.
3. If you're using a computer, position the video display unit of your computer in a way that allows you to hold your head in a comfortable position.
4. Position your desk so that you don't have to keep turning when when somebody enters the room.
5. When standing, don't fold your arms, this position tends to make you lean forward.
6. Balance your weight equally on both feet. Don't shift your weight from one foot to another.
And of course...
Tips on exercising safely:
1. Think long-term and get fit gradually.
2. Warm up before exercising. This will lessen the chances of strain and sprain. Have a few bends and stretches and arm swing.
3. Exercise regularly. Three 20-minute sessions are best.
4. Cool down afterwards by walking slowly for a few minutes. If possible, have a warm bath to relax muscles after exercise.