Andrew Thomas Weil (/waɪl/, born June 8, 1942) is an American celebrity doctor who advocates for alternative medicine including the 4-7-8 breathing technique. Following his internship, Weil took a position with the National Institute of Mental Health (NIMH) that lasted approximately one year, to pursue his interests in research on marijuana and other drugs; during this time he may have received formal institutional permission to acquire marijuana for the research.: 145f Weil is reported to have experienced opposition to this line of inquiry at the NIMH, to have departed to his rural northern Virginia home (1971-1972), and to have begun his practices of vegetarianism, yoga, and meditation, and work on writing The Natural Mind (1972). At the same time, Weil began an affiliation with the Harvard Botanical Museum that would span from 1971 to 1984, where his work included duties as a research associate investigating "the properties of medicinal and psychoactive plants". His interests led him to explore the healing systems of indigenous people, and with this aim, Weil traveled throughout South America and other parts of the world, "collecting information about medicinal plants and healing", from 1971 to 1975, as a fellow for the Institute of Current World Affairs. More information...
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