Psoas muscle attaches to your lower spine and to your thigh bone. If it's tight (sitting too much?) it pulls your lower back. It's one of the common causes of lower BACK PAIN! If you can stretch this regularly then your lower back may feel a lot better!
Nerve Function Chart : ” Many things can impair your nervous system and interfere with its function. When there is no interference, your nervous system controls the healthy function of virtually every cell, tissue, organ, and system of your body.
Phalen's Test is used to diagnose CTS; If the patient can hold his/her hands in this position for 30 seconds without pain, numbness or tingling, then he/she probably does not have Carpal Tunnel. The test is stopped at 15 secs if it is too painful.