Low levels of testosterone can contribute to fat accumulation in the arms, particularly in women. High blood glucose levels from diets high in sugar or carbohydrates, and menopause, can lower testosterone levels, leading to decreased muscle mass and the development of what is sometimes called "bat wings" or flabby arms. This is because testosterone plays a significant role in muscle building and metabolism. While testosterone isn't the sole cause of arm fat, its deficiency can be a contributing factor.
Other factors, such as genetics, obesity, and significant weight loss, also affect arm fat distribution (WebMD). Conditions like lipedema, a chronic condition causing abnormal fat accumulation in the legs and sometimes arms, are also relevant (NHS, Better Health Channel).
It's important to note that Cushing's syndrome, caused by excessive cortisol, can lead to fat accumulation in the trunk but often results in slim arms (NHS, MedlinePlus). Conversely, insufficient testosterone can lead to fat accumulation on the upper arms (Woman's World). Therefore, the relationship between hormones and arm fat is complex and not solely dependent on a single hormone.
- Key Factors Contributing to Arm Fat:
- Low testosterone levels (particularly in women)
- High blood glucose levels
- Menopause
- Genetics
- Obesity
- Significant weight loss
- Lipedema
