SAN DIEGO--The regimen is very Californian: Hot oil massages. Aroma therapy. A special diet tailored to the season and your particular dosha (body type). Doses of yoga, meditation and other mental exercises to cleanse the mind. Sounds right at home in Southern California, fertile territory for every alternative medical treatment from acupuncture to Zen. But the spin here is that the 6,000-year-old form of Indian folk medicine called ayurveda is now available at the Sharp Institute for Human Potential and Mind-Body Medicine, an offshoot of the Sharp HealthCare medical conglomerate, a charter member of the medical Establishment. Sharp operates a string of good, gray hospitals where Marcus Welby would feel right at home. (excerpt)