My husband has a weak back. He frequently has pain in the lower back which is severe and takes a long time to go away. Since we bought Seqex, he started using it for back pain. He noticed that the mat lessens the pain and makes it go away much faster. He also uses the mat when he has difficulty sleeping and it helps him to fall asleep faster and sleep better through the night. We are happy that the machine comes with different settings and can be used for different purposes.