A breast researcher would say, “Yes.” A quote from tomorrow’s The Sun:
Professor Jean-Denis Rouillon, from the University of Besancon, led the 15-year study into women’s breasts.
He said: “Medically, physiologically, anatomically – breasts gain no benefit from being denied gravity.
“On the contrary, they get saggier with a bra”.
Here’s more extensive coverage.
I’m sure many men will enjoy this idea.