According to space shuttle commander Alan Poindexter, while visiting Japan, astronauts aboard the International Space Station have working relationships and do not have personal relationships, implying that sex does not occur in space.
According to a U.S. survey of heart attack patients, the resumption of a normal sex life after a heart attack is highly dependent on whether their doctor discusses sex with them after their heart attack.
The American Association of Retired Persons (AARP) undertook a survey of sexual and romantic habits for people in the United States 45 years and older. The 2009 survey was released early in May 2010. It found that most people in the 50s had less sex from 2004 to 2009.