Tag: Small breasts

Genetics is the number one determining factor for breast size, influencing over 50% of the variation among women. If you find yourself asking, **why am I so small chested**, it is important to remember that breast size is influenced by a complex interplay of genetic, hormonal, and environmental factors.

According to a 2018 study, breast size is a highly heritable trait, with genetics playing a significant role. This inheritance, along with other factors, answers the common question: what causes small chests? For many, the answer lies within the unique blueprint of their body, guided by a combination of genetics, hormonal balance, and body composition.

According to a study published in the journal *BMC Women's Health*, genetics is a significant factor in determining breast size. The intricate combination of genetics, body composition, hormones, and lifestyle all contribute to what makes you flat chested. This article delves into the various reasons behind smaller breast size.