When I fractured my arm I thought I wouldn't be able to drive all summer. I was told by my doctor, after he saw the xray, I'd be in a sling for at least 3 weeks and wouldn't be able to straighten my arm for a long time after. I started using the Genesis Health Light twice a day and after one week I was able to straighten my arm, and after one month I was able to drive again. I have to be honest, I thought there was no way it would work, but it really did! Thank you!