be by a doctor but someone who is a licensed massage therapist. you're making a great point here. not everyone at the spa with the low lighting is getting that. they decrease the amount of stress hormones in your body, that they increase your ability to fight off infection and improve your immunity. those studies are late suspect. it's too early to say this is a cure all. 10% of americans are now getting massaged and it's increasing every year. i think a medical massage, or one by a licensed massage therapist -- jenna: massages by the way that are on the screen are particularly very g just as a side note. have you ever had one, doc, a hot stone massage. >> reporter: yes, but with my schedule -- muscles get very tense, they get tight end up and there is a medical reason for actually relaxing them and decreasing the amount of fatigue. jenna: should jon's insurance