I am a 53 year old active nurse, but I also help on the farm. I honestly think that my elbow issue was from the farm work. I have suffered from tennis elbow for the past 6 months, aggravated by shoveling and lifting. It was so bad that I was in constant pain until I tried Mark’s ArmLock Sleeve. After a week I started to notice an improvement. By 4 weeks I was pretty well pain free, able to do chores without suffering from tennis elbow symptoms. I really appreciated that I could do the therapy on my own in my own home. I highly recommend this product.