Editing Breast (section)

== Exercise ==
Biomechanical studies have demonstrated that, depending on the activity and the size of a woman's breast, when she walks or runs braless, her breasts may move up and down by {{convert|4|to|18|cm}} or more, and also oscillate side to side.<ref name=nhsuk/> Researchers have also found that as women's breast size increased, they took part in less physical activity, especially vigorous exercise. Few very-large-breasted women jogged, for example. To avoid exercise-related discomfort and pain, medical experts suggest women wear a well-fitted [[sports bra]] during activity.<ref name=nhsuk>{{cite web |title=How a well-fitted sports bra can reduce breast pain |url=https://www.nhs.uk/live-well/exercise/right-sports-bra-can-reduce-breast-pain/ |website=nhs.uk |access-date=7 March 2019 |language=en |date=30 April 2018}}</ref>