Everyone knows that finasteride causes permanent contraction of pelvic floor.
I have simply discovered that when I relax that area my erection is stronger and longer lasting.
When I say relax, I mean to perform the opposite of squeezing in that area. Similar to force to defecate BUT centered on the area of the prostate.
I believe that to do relaxation exercises of pelvic floor helps to discontraction of that area and allows more blood and oxigen in that area.
Do this before sleep is very interesting to regain penile health. (nocturnal erections)