Banning the display of cigarettes in stores helps reduce smoking among teenagers.
Teenagers interviewed before and after Ireland's 2009 ban on such displays are unlikely to recall advertising displays and say fewer friends smoke after the ban (
Tobacco Control, DOI and colon cancer. 10. 1136/tc. 2010. 038141).
According to the United Nations partnership on AIDS, the number of new HIV infections worldwide has decreased in the past decade.