1. Make exercise your daily activity According to research, exercise for 4 hours a week can reduce estrogen levels and prevent breast cancer. This activity will also make your breasts look firmer and brighter. 2. avoid the bad habit of smoking breast cancer rates of women who smoke are 30 percent greater than women who do not smoke. This bad habit also causes the breasts to look saggy, pale, and certainly unhealthy. 3. avoid drinking alcohol Alcohol can cause reduced work of body organs. Makes blood flow not smooth and muscles stiff. if you want to have breasts that look beautiful with bright nipples, it's best to avoid drinking alcohol. Moreover, some research also shows that alcohol can cause breast cancer