Just by sitting in a good posture can affect your body positively. Think about fixing the alignment of your body. You can adjust you chair so that your feet, hips, and arms can be 90 degree angle . Try to use your core to keep the good posture.
Tightening Abs
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Simply hold your stomach in with a deep breath. Tighten the abdominal muscles for 5-10 seconds and relax. Repeat 10-15 times. If you do this right, you can get the flat belly!
Hand Shake
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Sit up and clasp hands together like you give a handshake using both hands. Have one hand faced to the floor and the other to the ceiling. Then pull as much as you can for 10 second.This will work your arms.
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