The research found that sexual appetite declines only slightly between the ages of 50 and 70, with many men and women practising vaginal intercourse, oral sex and masturbation well into their 70s and 80s.

• 研究发现在50-70年龄段之间人们的性欲只会稍微地下降，而他们中的许多到了七八十岁都会进行阴交，口交还有手淫。