Inclusion Criteria:  Confirmed diagnosis of High functioning autism / Asperger's syndrome using standardized tests (ADOS / ADI / DISCO), IQ over 70, English speaker Existing or previous client resident within South Eastern Health & Social Care Trust catchment area.  Exclusion Criteria:  Learning disability (IQ<70). Cardiac condition / pacemaker. Drug /alcohol addiction Current psychosis Current suicidal ideation. Eczema / psoriasis Immunosuppressing condition MRSA / C Difficile