Accroding to this cracked article http://www.cracked.com/article_20133_5-reasons-modern-life-driving-manliness-to-extinction.html
which cites here as reference http://www.ncbi.nlm.nih.gov/pubmed/20050857?utm_source=REFERENCES_R7
Tanning your balls does help testosterone, though tanning in general probably helps.
which cites here as reference http://www.ncbi.nlm.nih.gov/pubmed/20050857?utm_source=REFERENCES_R7
Tanning your balls does help testosterone, though tanning in general probably helps.
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