Reading Time: 2 minutes MONTREAL Boys will be boys, as the adage goes, with their boisterous rough-and-tumble play so stereotypically male. Is it the doings of a primary sex hormone called testosterone, long associated with social dominance, masculinity, and strength? Many scientists have explored the role of hormones and conduct, whether in school playgrounds, sports, war, or bedrooms. Now a Universite de Montreal study of five-month-old twins is among the first to tease out the contribution of genetic and environmental factors to circulating levels of this chemical. The research with infant twins suggests that the environment plays a more significant role than genes when … Read more
- Andropause (183)
- Blog Testosterone (3)
- Diets (31)
- Drugs (9)
- Erectile Dysfunction (1)
- Fertility (7)
- HCG Injections (4)
- Hormone News (41)
- Hormone Therapy Review (54)
- How to Inject Hormones (2)
- HRT Fitness And Exercise (5)
- Human Growth Hormone (19)
- Human Growth Hormone Clinic (2)
- Hypogonadism (117)
- Hypopituitarism (2)
- Is it Low T (16)
- LabCorp Blood Testing Centers (1,809)
- Low Testosterone (242)
- Male Health (2)
- Male Sexual (3)
- Men's Health (15)
- Online Pharmacy (1)
- Quest Blood Testing Centers (1,325)
- Testosterone And Cancer (2)
- Testosterone Clinics (408)
- Testosterone Cream (37)
- Testosterone Cypionate (66)
- Testosterone Gel (96)
- Testosterone Information (1,278)
- Testosterone Injections (54)
- Testosterone News (34)
- Testosterone Replacement for Men (6)
- Testosterone Replacement Therapy (149)
- Testosterone Therapy (12)
- Omnitrope: How to Mix & Inject Omnitrope HGH Injections?
- Easily Increase Testosterone Levels and Improve Your Health Naturally: Just Follow These Tips!
- Norditropin Side Effects
- Choosing the Right Growth Hormone Therapy: A Comparison of Options
- Low T’ treatment appears to be safe for men with heart Disease.