Men make a thousand sperm every second and to have an effective contraceptive,每秒中，男性可生产出一千个精子，所以有效的避孕药you need to get that level of sperm production down to one percent of its normal value.必须把这个精子生产率降到正常值的1%。The good news is, this is possible, almost.好消息是，这是可以做到的，几乎可以。The most studied approach has b

Obviously, the impact of such a male contraceptive would go well beyond reproductive biology.当然了，这样的男性避孕药影响的肯定不只是生殖生物学。It&#39s interesting to speculate about the effect that it would have on relationships between men and women.它会如何影响男性与女性的关系也是个有意思的题目。One intriguing possibility is that a man could mo

One approach that&#39s finally becoming a real possibility is better contraceptive options for men. Think about it.一种即将成为现实的办法是针对男性的更好的避孕措施。想想吧。We have over a dozen methods of contraception for women: pills, patches, IUDs, shots, sponges, rings, etc.我们有数十种女性避孕手段：避孕药、避孕贴、节育环、避孕针、避孕海绵、阴道环等等。For men, w

When I tell people that I&#39m trying to develop a contraceptive pill for men,当我跟别人说我正在尝试研发男性避孕药时，the response usually varies along gender lines.对方的反应一般取决于性别。Women say something like, &quotFantastic. It&#39s about time. When?&quot女性会说，“太好了，是时候了。什么时候（能研制出来）啊？”Men have one of two responses.男性一般会有两种反应。