According to Dr. Malluci of the Royal Free and University College London Hospitals, it is the relative size of the upper and lower halves of breasts that holds the secret of the perfect bust.
He believes the most-appealing female breasts should be only slightly smaller above the nipple than below.
To support his hypothesis, he asked more than 1,300 people to rank four breast types with different proportions. Board-certified plastic surgeons have championed the adoption of this aesthetic principal.
This golden ratio for breasts is not just a modern phenomenon.
Throughout history, from the earliest representations of women to the statues of antiquity, from Renaissance masters to modern photographers, artists have chosen the same proportions.