What is the scientific reason to morning wood?

Question

I was once told that it was an evolutionary feature - that in prehistoric times cavemen used to sleep outdoors on hilly terrain. And sometimes in the night they would roll down hill to their death. Over time, they developed a self-defense mechanism called morning wood that acted like a kickstand, preventing them from rolling down hill at dawn's early light. Those who got morning wood survived and passed their genes on and now all men get it in the wee hours of morning - even though we don't sleep outside on hilly terrain any more!

-Is this true?

Answer 1

so we can wake up and stick it in the person next to us.

Answer 2

Cute story.... ridiculous, but cute.

When you wake up, your blood pressure rises as you start using your muscles. This is probably the reason for the surge of blood to your groin and your morning wood.

However, you should know that a guy typically has an average of 9 erections during an 8 hour night of sleep - you're only aware of those you wake up with. Much like dreaming - you will only remember those you wake up during.

The only time you might want to be concerned is if you're spending the night somewhere, you have an erotic dream, and your morning wood turns out to be a wet dream. That's also not uncommon, but someone else's sheet? Geeze!
LOL

Answer 3

Bladder rigidity to flow to the bathroom from ingesting the nighttime in the previous. The community american indians even used this methodology as an early alarm clock to get the coolest thing approximately an early attack.

Answer 4

It is due to elevated blood pressure in the morning.

Answer 5

It is a test, like the Emergency Broadcast System... but with your penis.

Answer 6

Too much blood rushing to your nether regions!

Answer 7

HaHaHa that is so frieken funny. I have to say true

Answer 8

man its cuz u have erotic dreams and u wake up wit it

Answer 9

It is what makes us different from Homosexuals

Answer 10

Idiot!!!