Puberty and a High Percentage of Body Fat
Hormonal changes that occur during puberty can lead to the manifestation of several signs of gynecomastia. Studies show that over 60 percent of young men experience signs of gynecomastia by age 14. If your gynecomastia occurs during puberty, it can be improved without treatment after three years.
The presence of an excess level of body fat can lead to the accumulation of fat around the chest. The excess level of body fat can also result in high estrogen. Testosterone is converted to estrogen by the enzyme, aromatase [4]. This conversion often takes place in fat tissues. According to research, over 80 percent of estrogen in men is synthesized by the activities of aromatase.