You can't smoke cigarettes in or around most hospitals, but people can still light up at about 1 in 5 U.S. psychiatric facilities.
Medical professionals are split on whether to enforce smoke-free policies in psychiatric hospitals. Some worry patients may not be able to quit and would pick up the habit again when discharged. Others claim patients could get aggressive if they can't smoke.
But research shows facilities that go tobacco-free usually see less verbal and physical aggression from inpatients.
In the meantime, more psychiatric hospitals are implementing smoke-free policies. While about 60 percent of public facilities allowed some kind of smoking in 2006, that number dropped to 21 percent by 2011.