The world's first study into the science of 'saggy boobs' is on the look out for volunteers.
Researchers at Portsmouth University will use special scanners to try and determine why some breasts are saggier than others.
They'll be looking at fat and glandular proportions, and at why one bra design doesn't fit all.
Participants will be asked to run on a treadmill while having their breast movement analysed. Volunteers will be paid £30.
The large-scale study is being run by the Research Group in Breast Health at the University and co-hosted at St Mary’s NHS Treatment Centre, Portsmouth, over two days in December.
Senior Research Associate Dr Tim Blackmore said: “This research will be the first time scientists will have evidence on whether the density of breasts affects their movement.
The Research Group in Breast Health has for a decade led the world in breast health studies. Its scientists have worked with lingerie manufacturers, the military, the NHS and other organisations to test bras and to inspire changes in their design and to safeguard women’s health.
Penny Daniels, hospital director at St Mary’s NHS Treatment Centre, said: “This is a worthwhile project, as not only may it allow greater comfort for women everywhere at the end of a very long day at work, but it may also reveal valuable insights into women’s health and wellbeing.
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