Gene Block, a professor of psychiatry and biobehavioral sciences at University of California, Los Angeles, and colleagues found that by middle age, the signal the master body clock in the brain sends out to other internal clocks to help resynchronize the different processes gets weaker.
He's an artist juggling a trillion musical ideas, complete with a master's degree in ethnomusicology, but then there's his other master's degree the left-brain one, in biostatistics.