2. DON’T: Rely solely on high impact exercise
According to Dr Kremer the research is not conclusive, but some experts believe that ‘back-and-forth repetitive motions that happen when you run or do a similar workout can lead to a breakdown of breast collagen.’
If you want to be on the safe side, alternate between sports such as running and lower impact exercise like swimming and yoga.
3. DON’T: Wear a bra all the time
A study by French researchers found that constant support can weaken chest muscles and make the breasts sag.
However, going braless all the time is likely to have the exact same effect.
The best approach is to give your breasts a break now and again and ditch your bra.