A member asked:

What causes erections, even when there is no physical stimulation?

A doctor has provided 1 answer
Dr. James Lin answered

Here are some ...: You get erection because your body can selectively divert, & store the blood to the corporeal bodies of the penis within desirable pressure. These processes are accomplished by the well auto-regulated healthy nerves & circulations so to run the recycle of arousal, erection, orgasm/ ejaculation, detumescence & rest, but may be affected by drugs, lifestyle with progressive vulnerability over aging.

Answered 1/24/2015

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