penis exercise.

[MIKEHAWK]

https://www.youtube.com/watch?v=5Zw_9kGekRw

I'm wondering do these men have peyronies diease?  

[Skjaldborg]

According to the video, the weight is strapped to both the scrotum and penis. Assuming they are not erect, they might not be damaging the tunica. Oddly enough, this activity is similar to traction, although I wouldn't recommend it. The stretching of the scrotum could cause trauma, testicular torsion as well as minor bruising, etc.

Probably not a good idea. I have some familiarity with Chinese medicinal practices through my work, but I do not have much faith in them.

Skjald