今天看到一个新闻，说是美国18岁以上（成年人）一年内没有任何性爱的比例高达26%，创下历史记录。

https://amp.cnn.com/cnn/2022/02/14/health/valentines-day-love-marriage-relationships-wellness/index.html

分段的小标题是：

We''''re at a 30-year low for sex！

We''''re at a 30-year low for living together！

Partnership is at a low, not just marriage！

Many Americans won''''t get their partner a card for Valentine''''s Day！

The divorce rate is dropping

Twenty-six percent of Americans ages 18 and up didn''''t have sex once over the past 12 months, according to the 2021 General Social Survey. You might think this is just a pandemic effect, but it''''s part of a long-term trend. The two years with next-highest percentage of adults saying they didn''''t have sex once in the past year were 2016 (23%) and 2018 (23%) -- the last two times the survey was conducted. Before 2004, the highest percentage of Americans who said they hadn''''t had sex in the past year was 19%.

Last year''''s survey was also the first time that the percentage of Americans who had sex once a month or less topped 50%. In 1989, 35% of American adults had sex once a month or less.

这个论文认为问题出在互联网上

https://jamanetwork.com/journals/jamanetworkopen/fullarticle/2767063

That leaves another substantial change that has occurred since 2000: the growth of the internet and digital media. Although internet sites and social media should theoretically make it easier to find new sexual partners, time spent online has also displaced time once spent on face-to-face social interaction.⁵ Even when individuals interact face to face, mobile technology such as smartphones may interfere with the satisfaction that people derive from in-person interaction .⁶ The neologism phubbing describes a social interaction in which one partner pulls out his/her phone, thus snubbing the other partner. This behavior may be especially problematic in romantic relationships, in which it is associated with lower relationship satisfaction.⁷ Between the 24-hour availability of entertainment and the temptation to use smartphones and social media, sexual activity may not be as attractive as it once was. Put simply, there are now many more choices of things to do in the late evening than there once were and fewer opportunities to initiate sexual activity if both partners are engrossed in social media, electronic gaming, or binge watching.

有些道理， 过去孩子跟朋友玩都是去户外打球骑车， 现在多半在游戏里边玩边聊，或是一边看线上视频， 一边在chat group 里讨论， 几乎没有时间空间限制。

这个比例还蛮高的