Penis size and environmental effects

Are there any environmental catalysts that can effect the development of the size of a penis, or does one's DNA determine it's absolute size irrespective of all other factors?

Maybe it was the way I asked the question.

Only the environmental factor of penis enlargement.

The determinants are most likely:

DNA
Diet/Nutrition/Exercise - basically stay healthy

The effect of nutrition is probably negligible, but probably makes some small difference. If you keep fit and eat well then you are maximising your potential for penile growth

Being really turned on helps too.

This is something I have wrestled with....I think environmental factors do affect penis size. The use of progesterone or other female hormones by women who get pregnant at an advanced age cannot be good for large junk.

i dont know really.. i do now that dutch are getting 4,5 cm (1,77 inch) longer every generation. There are studies that place dutch people in the top ranking as far as height. Wich is funny because at some places our country is 6 meters (19,68 feet) below sealevel. So maybe were growing to compensate that. Anyway.. my point is, that fact we keep growing without an end in sight must be due to diet and lifestyle. I haven't found results that compare that to penis length though.

Environmental hormones (or depending on what school you went to chemicals mimicking hormones etc etc) in some places might play an issue.

Good one. Maybe female hormones in the water supply. There are some fertility drugs that can make women have boys with low testosterone which I assume also means smaller penises.

Mainly though I would say diet and lifestyle probably only serve to 'maintain' the health/size of your penis rather than increase its size.

I've decided to "wake up" this thread with something controversial. Hint: begins with the letter 'c'. A possible factor is infant circumcision. There are occasional discussions to that effect on the foreskin restoration sites. The theory being a tight cut restrains growth of erectile tissue [corpora cavernosa, corpus spongiosum] during puberty.

The cut mongers won't buy into that of course but there is a clinical study done in Australia that showed a slight decrease in average length: ~3/8in or 10mm of cut versus intact. Funded by Durex, it's purpose was to validate if condoms were being made in appropriate sizes. It was published by J. Richters et al in Venereology 1995; 8(2):77-81. The unexpected difference between the two groups was briefly commented upon in the abstract.

An average of 3/8in isn't much but it is an average. Individual effects would vary. If you were cut at birth, you'll never know what you could have had.

Based on the thread title alone, I believe I can state categorically that WildHoney is causing my penis to contribute madly to global warming.

Decrease in Anogenital Distance among Male Infants with Prenatal Phthalate Exposure:

This next one is really frightening:

Is the Environment Male-Friendly? Environmental endocrine disrupters might contribute to defects.

A new theory J was told by a close friend that the growth hormones that is given to beef cattle is causing new generation guys to grow much larger cocks, seems logical, whats your thoughts on this?

I don't think that's the case. The body decreases testosterone production when testosterone is already present in the body. There are also a host of other hormones besides testosterone that all interact and effect each other. When there is too much of one, another gets secreted to decrease production of the other. Balancing the system is very difficult. Conventional wisdom might say that increasing testosterone in the body would increase certain characteristics dependent upon testosterone, yet it's widely known that increasing testosterone in the body artificially results in atrophied testicles. The exact opposite of what we might believe to be the effect. Not all growth hormones affect all body characteristics and, again, the presence of those hormones might cause other imbalances. Not being an endocrinologist I couldn't tell you for sure what the effects would be, but I doubt it's what your friend supposes simply based upon my amatuer study of male endocrinology.

I heard the opposite: that the hormones being used by the beef & dairy industry were contributing to the feminization of males (delayed puberty, lower sperm count, infertility, breast growth).

With the increase of birth control from the 70s onward, lots and lots of estrogen has been surfacing in the water supply.

Increased weatherproofing means that all the nasty chemicals in the products used to build your house and the furnishings etc, don't have a way out. We're constantly breathing in a miasma of chemical soup.

I've no doubt that kids who grow up in new, suburban homes have a much greater exposure to these chemicals. The boys are going to have lower sperm counts and the girls, when they reach childbearing age, will share all those chemicals with their fetuses.

Hypospadias is supposedly one defect that's linked to this. The shorter distance from the anus to the scrotum is another.

I wonder what the infertility rate will be in 2050, much less the rate of genital deformity amongst newborns.