Hayden was born in
Cape Town,
South Africa, one of Ann Platt's and Roger Hayden's two sons. His paternal grandfather,
Max Raphael Hahn was an entrepreneur, art collector and chairman of the Jewish community in
Göttingen,
Germany. His grandfather and grandmother were murdered during the Holocaust. His father, originally named Rudolf (Rudi) Hahn, fled to London in 1939, enlisted in the British army and fought during World War II, and eventually settled in South Africa in 1947. After the divorce of his parents, when he was six, Hayden was raised by his single mother. In 1975, he graduated from the
University of Cape Town as the top graduate in medicine, where he also received his PhD in Genetics (1979). He completed a post-doctoral fellowship and further training in Internal Medicine at
Harvard Medical School. Michael is board-certified in both Internal Medicine and Clinical Genetics. He moved to Canada and joined the
University of British Columbia (UBC) in 1983 from the Children's Hospital in Boston, a teaching arm of Harvard Medical School. He is married and has four children and eight grandchildren. == Science ==