Breast size is mostly determined by genetics, hormones, body fat, and age
Gaining overall body weight may increase breast size for some people
Strength training the chest can improve lift and shape, but not breast tissue size
Hormonal changes such as puberty, pregnancy, or certain medications can affect breast size
Breast enhancement surgery is the most reliable way to increase breast size
Fat transfer breast augmentation may increase size modestly
Consult a licensed medical professional before considering hormones, supplements, or surgery
Avoid unproven pills, creams, or devices that claim rapid breast enlargement