Man, boobs suck. This all comes from a research study at the Univers(t)ity of Portsmith, which concluded that "nearly one in five women" avoid exercise due to discomfort from their breasts. Right away there's the notable fact that nowhere does the study mention "big" breasts being the problem -- in fact, it specifically points out that the size of the breasts has nothing to do with their findings. A little thing like that never stopped the Mirror before, though.
"You think we should ask one before running this?"
What's more, once you actually analyze the study (i.e., read it), you discover that while it's true that "nearly one in five" women reported this, it's out of a pool of only 249 people who were asked -- breasts being listed as the fourth most common reason for absence of exercise behind lack of energy and time, as well as health issues. We're pretty sure that if you did a similar study for men, "awkward boners" would be somewhere down the list, too, and yet you don't see that in headlines. So far, anyway.