>>510174721In theory if you suck them long enough you can induce lactation. But beyond that if your wife just had a kid you can easily get milk from them, the only trouble then is they're usually too sensitive for it to be enjoyable for her and if you drink too much of it the kid doesn't get as much lol.
To the point of the article, there's a reason breast cancer used to be called "nun's disease". Women's breasts were made to feed children and if they aren't used for that purpose they are more likely to get cancer. Same with many other body parts, abuse them or don't use them as intended and you are more likely to get disease, esp cancer. Hormonal birth control increases risk of cervical cancer, for example.