Engineer Joseph Nazari developed CarpalAID® after having been diagnosed with carpal tunnel syndrome in both hands and undergoing surgery on one. Carpal tunnel syndrome is caused when there is pressure on the median nerve, which passes through the carpal tunnel in the wrist and into the palm. Repetitive motion of the hands and wrists, such as typing, assembly-line work, or gaming, and other factors such as pregnancy or diabetes can cause this pressure on the median nerve.