Men: Have you had difficulty getting out of bed in the morning, or are you suffering from low mood or libido? Have you gained body fat, lost muscle or begun to struggle with depression or lack of motivation? Low testosterone levels may be to blame. Ten years ago, the Endocrine Society reported that men had approximately 20% less testosterone than their fathers’ generation at exactly the same age (Travison et al. 2006). This has led to a growing trend of people using testosterone creams and gels to boost lagging levels….