"This is very exciting, clearly, because here we have somebody who can have anaphylaxis and deadly reaction from trace amounts, and you're converting this person into somebody who can tolerate a significant amount of the food, " said Dr. Anna Nowak-Wegrzyn, associate professor of pediatrics at Mount Sinai Medical Center in New York.

CNN: 'Exciting' advance reported in peanut allergy therapy

"I'm not saying this is a cure, " said co-author Dr. Jakub Tolar, an associate professor of pediatrics at the University of Minnesota.

CNN: A mother's plea: Heal my children's skin

"This study goes against everything that's been published for several years now from very reliable clinicians and researchers about the potential hazards of supplementing exclusively breast-feeding babies with formula, " says Dr. Kathleen Marinelli, an associate professor of pediatrics at the University of Connecticut School of Medicine and the chair-elect of the U.S. Breastfeeding Committee.

CNN: How formula could increase breast-feeding rates

But Dr. Gager and her co-author, Scott Yabiku, associate professor of sociology at Arizona State University, Tempe, controlled the results for "gender ideology" and found the housework-sex link remained true, regardless of people's views on roles.

WSJ: The Sex-Housework Link

"Not just ongoing violence, which everybody thinks about, but even when it's over, there's something about what happens that seems to have a lingering effect that we don't quite understand yet, " said Dr. Anuradha Paranjape, co-author of the study and associate professor at Temple University School of Medicine.

CNN: Abuse victims report long-term poor health, depression