How to Do It is Slate’s sex advice column. Have a question? Send it to Stoya and Rich here. It’s anonymous!

Dear How to Do It,

My husband is having an unusual issue: During the day he cannot get an erection, but at night he has no problem getting hard. It hasn’t always been this way with him, just within the last two years. He is 48 with no underlying health conditions, so I’m stumped as to why his dick seemingly goes dormant during daylight hours. Have you ever heard of this sort of thing before? Can you suggest any solutions? Waiting until after dark to get laid is becoming rather old.

—Up At Night

Dear Up At Night,

Generally, when seeming erectile dysfunction presents in some situations and not others, it is believed to be some kind of psychological manifestation. Th

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