5 Habits That Make Your Breasts Smaller: If your breast-enlarging techniques are wrong, such asä¹±grabbing and pressing randomly, if you don't consume protein in order to lose weight, if you take contraceptives because of acne... then you must read this article carefully. In order to erase the traces of time and preserve the beautiful curve of the bust, some women have exhausted their minds, employing various methods like exercise, massage, and plastic surgery. However, medical beauty experts warn that some unhealthy living habits are actually the culprits behind smaller breasts.