[ASK] Relation between REM and Erection?

I had ever read someone wrote that if you woke up in the middle of the night and your penis is erecting then you might be in your REM stage

And my question is "doesn't it right?"

If it was right, it would be easier for men to predict when their REM will start

If you're hard, you're in REM. It's true ;)

Yes, it's true. When you're in REM your body produces very low amounts of adrenaline and related chemicals, and this low activity causes erections. It's the same reason that high adrenaline activity inhibits erections, like in a fight, which makes a lot of sense with evolution and natural selection when you consider which members of a species are most likely to still have functional reproductive organs after fending for their lives in the wild. :lol:

Quote:

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Originally Posted by Alyzarin

Yes, it's true. When you're in REM your body produces very low amounts of adrenaline and related chemicals, and this low activity causes erections. It's the same reason that high adrenaline activity inhibits erections, like in a fight, which makes a lot of sense with evolution and natural selection when you consider which members of a species are most likely to still have functional reproductive organs after fending for their lives in the wild. :lol:

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oooohhhhhhh I always wondered what caused morning wood haha

Side effect of REM atonia.

Thanks, guys for the replies

Now, I know more