4. Hold your legs up for 30 seconds.
- Lie down, facing the floor.
- Keep your arms straight by your side on the ground.
- Lift both of your legs up, while keeping your body still.
- Hold this position for 30-35 seconds.
If you were able to do the above without twitching your legs or moving them, your body is healthy. On the other hand, if you found this task to be really difficult, there might be something wrong with your abdomen or lower spine.