Is pot good for sex? A lot of people believe it is. Many men say that it increases their endurance (in fact, their sense of time may be distorted by the drug), and many women rapturously report that it increases their enjoyment. But watch out. Long-term puffing, a new report concludes, can interfere with the production of reproductive hormones, suppressing the supply of the male sex hormone testosterone enough to produce impotence or infertility.
Earlier studies linking marijuana use to lowered sexual prowess have been largely discounted because they lacked proper controls. But the new study by researchers at the Reproductive Biology...