Many studies have shown that prolonged and inactive sitting could cause chronic problems like back pain, heart problem, calf tension, neck discomfort, etc.
Actually sitting an hour only burns 80 calories based on data from American Cancer Society, much lower than walking which is 300 calories per hour, let alone other more intense exercise.

However, sitting is unavoidable for most people, as required by the typical work. The key is to keep moving frequently, even while you are sitting!
So you might think whether we could exercise while sitting at work? Fortunately, yes we can! Below are 10 best exercise to do at work while sitting.
1.Leg raise exercise
Leg raise will help increase circulation and begin to build strength. It also reduce the chance of numb leg or foot.
2. Lower Back and Torso Stretches
Sitting for prolonged time can make your lower back stiff and pain. Try those
Lower back stretch, side stretch, seated twist and seated hip stretch.
3. Resistance Band Leg Exercises
If you have a resistance band, you could do more leg or arm exercise.
4. Seated Ankle Rotation
Ankle rotations or circles can help improve ankle strength and flexibility.
5. Neck Stretches
We spend so much time in front of computer. Neck tension is a common discomfort many people experience. Stretching your neck and shoulder every 30 minutes will help you keep good posture and refreshed.