You can try, with conservative doses at first. I can not advise you to do this, but you can read what's out there and decide. If you get a negative result, you stop. The longest study of illuminating the heart was done in Russia. It was ten years long, and did not report negative side effects, but many positive benifits............

Results Of 10-Year Use Of Low Intensity Laser Therapy And Conventional Treatment Of Patients With Stenocardia G.W. Babushkina, I.M. Korochkin, A.V. Kartelishev Bashkir Medical University, Ufa, Russian State Medical University, Moscow, RF..........There is a book that tells people how to do their own laser therapy at home with a regular laser pointer: Rejuvenation by Lawrence DelRe