Physical limitations, Irregular blood pressure (high or low), Irregular heart conditions (surgery, pacemakers, arrhythmia),Physical limitations (broken bones, strains, sprains, chronic aches), Operations, Hypo or hyperglycemia (medications), Pregnancy, Epilepsy, Psychiatric conditions (with medication); Manic/depressive, Bi-polar conditions, Schizophrenia, Severe depression, Psychosis, Borderline personality disorder