Published on: 7/9/2025
What could be the reasons for my upper body getting bigger?
Your upper body might be getting bigger due to exercise, like weightlifting, or changes in hormones, such as increased testosterone levels.
Explanation
There are a few reasons why your upper body might be getting bigger.
Exercise and Muscle Growth:
- When you do exercises like weightlifting, your muscles can grow bigger. This is called muscle hypertrophy. Your muscles get tiny tears when you lift weights, and when they heal, they grow bigger and stronger.
Hormones:
- Hormones can also make your muscles grow. Testosterone is a hormone that helps muscles grow. If you have more testosterone, your muscles might get bigger.
These are natural ways your body can change. If you are worried about these changes, you can talk to a doctor to learn more.
(References)
- Schoenfeld BJ. (2010). The mechanisms of muscle hypertrophy and their .... Journal of strength and conditioning research, 20847704.
- Bartolomei S, Hoffman JR, Stout JR, & Merni F. (2018). Effect of Lower-Body Resistance Training on Upper .... Journal of strength and conditioning research, 29257792.
- Bhasin S, Storer TW, Berman N, Callegari C, Clevenger B, Phillips J, et al. (1996). The effects of supraphysiologic doses of testosterone on .... The New England journal of medicine, 8637535.
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