In this episode, Dr. Brandon and Dr. Morgentaler talk about how testosterone levels relate to age, weight, vitality, and long-term health—highlighting surprising research, the impact of obesity, and why staying lean may be the secret to aging well.
00:08 Testosterone and Aging: An Overview
Dr. Morgentaler and Dr. Brandon open the episode with a candid look at how aging affects testosterone—and why it’s more complex than most people think.
01:00 Symptoms and Diagnosis of Low Testosterone
From low libido to lack of vitality, they explore subtle signs of low testosterone and the importance of testing even when symptoms aren’t obvious.
03:42 Research Insights on Testosterone Levels
They break down surprising research showing that average testosterone levels may not decline as much with age—but free testosterone tells a different story.
09:39 Impact of Weight and Lifestyle on Testosterone
The doctors highlight how obesity is a major driver of low testosterone and explain how weight loss or GLP-1s can help restore healthy levels.
16:48 Concluding Thoughts and Final Tips
The episode wraps with key takeaways: stay lean, stay engaged, and don’t overlook testosterone—especially in overweight or aging men.
Resources:
Wu, F. C. W., Tajar, A., Beynon, J. M., Pye, S. R., Silman, A. J., Finn, J. D., ... & Forti, G. (2010). Identification of late-onset hypogonadism in middle-aged and elderly men. New England Journal of Medicine, 363(2), 123–135. https://doi.org/10.1056/NEJMoa0911101
Wu, F. C. W., Tajar, A., Pye, S. R., Silman, A. J., Finn, J. D., O’Neill, T. W., ... & EMAS Group. (2008). Hypothalamic-pituitary-testicular axis disruptions in older men are linked to age and modifiable risk factors: The European Male Ageing Study. The Journal of Clinical Endocrinology & Metabolism, 93(7), 2737–2745. https://doi.org/10.1210/jc.2007-1972
Huhtaniemi, I., Forti, G., & EMAS Study Group. (2012). Profile of the European Male Ageing Study (EMAS): Background, aims, and study design. Archives of Gerontology and Geriatrics, 54(3), e547–e556. https://doi.org/10.1016/j.archger.2011.11.014
With Dr. Abraham Morgentaler and Dr. Marianne Brandon
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