Biopsychosocial Approaches in Primary Care

ST MEDICINE IN A CHANGING UNIVERSE AT THE THRESHOLD OF THE 21 CENTURY Hoyle Leigh, M. D. I Professor ofPsychiatry San Francisco, University ofCalifornia, and Fresno VAMedical Center INTRODUCTION During my lifetime, the universe has changed beyond recognition. The universe into 111 which I was born, in the first halfofthe 20 century, was still infinite, permanent, orderly, and tranquil --- a universe that worked like a masterfully constructed clock. Matter and energy followed Newton's lawsofconse