Sex is down in America. For both teenagers and young adults, sex is in decline, according to a new article by Demographic Intelligence President Samuel Sturgeon published in Politico. The share of young adults aged 18-30 who reported no sex jumped from around 10 percent a decade ago to 18 percent in 2014-2016. This decline in sex is probably one of the factors driving United States births downwards, according to Sturgeon. In fact, the United States is on track to have its lowest fertility rate ever, the Politico story suggests. For more on the subject of sex, relationships, and fertility in America, read the complete article at this link.