I am a retired mechanic and I was recently having some back issues. Just tried a new form of treatment, like acupuncture but way more affordable for me. It is a self acupuncture pillow. Just thought I would suggest it to you all. It was a fairly spent twenty dollars. I lay on it 30 minutes a day and already, (It's been 2 weeks), I am completely off my five a day Advil diet that many of you are aware of. I bought the Prickly Pad and am very satisfied...but there are other types of these pillow mits? on the market. I would recommend this blood circulation treatment, my doctor says it will produce long term results.