Research in the late s found larger boobs were yet again more appealing. In , the average age for menstruation was 16; by the end of the century it was coming down to Do not submit if you have implants. But none of it is yet proven. There are slings down the side of the cups that hold the wearer's breasts securely to minimise movement. Modern bras may be feats of engineering, but all women know that if you want to buy a bigger cup size, there are easy ways to do so. How do the women react to this news?
Marina. Age: 25.
This finding cannot be explained by weight change alone.
Caitlyn. Age: 27.
Why are British women's breasts getting bigger?
They may yet be revealed to have wreaked havoc on the biology of the human race in the imminent future, but right now there's apparently not enough conclusive proof to say either way. Most of them seem to tie in with the most fashionable current cultural fears and are rather gloomy. In a country where one in three women is overweight, you'd think there was a simple, fat-related reason for this, but obesity alone doesn't explain the jump in cup size, nor the biggest growth area in bra sales: smaller back size and bigger cup size.