Dr. Harold Urschel, chief medical strategist of the Dallas-based addiction-management company EnterHealth.com, author of Healing the Addicted Brain, and fellow Psychology Today blogger, told me: Caffeine is quite addictive in the sense that it is a psychoacive substance. It stimulates certain chemical systems in the brain and this keeps you awake. If you use it on a daily basis, you develop a tolerance, just as you would to pain pills or other drugs.
By On 04/04/17 AT 3:39 PM. Susan Rice, former national security adviser to President Barack Obama, came under fire after reports emerged that she âunmaskedâ President Donald Trumpâs associates caught on tape during intelligence surveillance.
Susan Rice Biography. Susan Rice is the former U.S. Ambassador to the United Nations who became President Barack Obamaâs national security advisor in 2013. Susan Rice went to Stanford University, graduating with honors with a history degree in 1986 and being chosen for Phi Beta Kappa. She then went to New College, Oxford on a Rhodes Scholarship, receiving an M.Phil (Masterâs degree, 1988) and D.Phil. (Ph.D, 1990) in International Relations.