Very interesting study

www.ncbi.nlm.nih.gov/pubmed/12659241?dopt=Abstract

A research on the relationship between ejaculation and serum testosterone level in men.
Jiang M, Xin J, Zou Q, Shen JW.
Source

Department of Life Science, Hangzhou Normal College, Hangzhou 310020, China. EMAIL ADDRESS REMOVED
Abstract

The purpose of this study is to gain understanding of the relationship between ejaculation and serum testosterone level in men. The serum testosterone concentrations of 28 volunteers were investigated daily during abstinence periods after ejaculation for two phases. The authors found that the fluctuations of testosterone levels from the 2nd to 5th day of abstinence were minimal. On the 7th day of abstinence, however, a clear peak of serum testosterone appeared, reaching 145.7% of the baseline ( P < 0.01). No regular fluctuation was observed following continuous abstinence after the peak. Ejaculation is the precondition and beginning of the special periodic serum testosterone level variations, which would not occur without ejaculation. The results showed that ejaculation-caused variations were characterized by a peak on the 7th day of abstinence; and that the effective time of an ejaculation is 7 days minimum. These data are the first to document the phenomenon of the periodic change in serum testosterone level; the correlation between ejaculation and periodic change in the serum testosterone level, and the pattern and characteristics of the periodic change.

Basically in males, abstinence from ejaculation results in a 147% increase in natural testosterone levels after 7 days.

What do you guys think about this? Kinda blew my mind.
No more jacking it for me lol :S

Their is contracting evidence, that the opposite is true.. No idea which is right or wrong, as both conduct medical trials

Then on day 7 you nail everything in sight? No thanks. I like my serum levels constant and my sack empty!!!! Otherwise i cant concentrate on anything else!

With you on that one jack... Whacking off regularly also decreases your chance if prostate cancer by almost 50 percent...

Even if you take into account the events at the Soccer World cup that was hosted here, some team trainers forbid their players from having unf unf unf, while others encouraged it, both due to testosterone levels, but both going on different evidence.

00pump wrote: Their is contracting evidence, that the opposite is true.. No idea which is right or wrong, as both conduct medical trials

Link to contradicting study?

www.peaktestosterone.com/Sex.aspx is an overview, check pubmed for the actual trials...

Thanks
That's pretty weird, not sure which to believe

Though the study in OP is a much later study (2002?)