Uncommon Descent Contest winner 5: Why middle-aged men have shiny scalps

Before I announce the winner, I should note that Harper One San Francisco has announced that 5 hardback copies of both Steve Meyer's Signature of the Cell, ( 2009) and Beauregard and O'Leary's The Spiritual Brain (2007 ) are available free to contest winners. Like, win and add them to your library for free.

Okay, now to Question 5:

Winner VJ Torley writes,

Go here for more.