A strange thing has happened to men over the past few decades: We’ve become increasingly infertile, so much so that within a generation we may lose the ability to reproduce entirely. What’s causing this mysterious drop in sperm counts—and is there any way to reverse it before it’s too late?

A new male birth control pill passed tests of safety and tolerability when healthy men used it daily for a month, and it produced hormone responses consistent with effective contraception, according to researchers at two institutions testing the drug. The Phase 1 study results was presented Sunday, March 24 at ENDO 2019, the Endocrine Society's annual meeting in New Orleans, La.

A large clinical trial launched this week will test a new, gel-based form of male birth control, Gizmodo reported Friday.

There was a drastic decline in teenage pregnancy in 2015 due to higher contraceptive use, according to a study published last month by the U.S. Centers for Disease Control and Prevention (CDC). The study used survey data collected between 2011 and 2015 from a nationally representative sample of male and female teens, aged 15-19; the survey has been conducted annually since 1988 by the National Survey of Family Growth.

Municipalities in Denmark are offering free and discounted contraception in a bid to reduce unplanned pregnancies and sexually transmitted diseases. At a municipal condom supplier in Randers, citizens can choose from a range of discounted condoms and contraception and a similar service is on its way in a second town, Holstebro, reports DR.

Of the men who completed a clinical trial, over 10% of them experienced decreased libido. By Katherine Ellen Foley.

One of the ‘best people,’ clearly. By Robyn Pennacchia.