When asked by a member of the press recently about his steadily graying hair, President Obama blamed the color change on his genes rather than the stress of his job.
“My grandfather was gray by the time he was 29. … So I figured it was going to come. It just happened to coincide with the presidency,” Obama said, according to ABC News.
Read more: http://www.foxnews.com/health/2011/10/21/does-stress-make-presidents-hair-go-gray/