This just in: Dense Breasts Will Protect Your Haid

Yes, it's true. I got this brochure at Fancy Hospital. Note the smiling woman on the bicycle. She's on a bike, not wearing a helmet, and presumably has dense breasts. Therefore, dense breasts must somehow protect your head so that that you don't need a bike helmet. I mean, how could you look at the photo
& come to any other conclusion??
Brochure is from American College of Radiology & Society of Breast Imaging