Previous studies have shown people were less likely to perform CPR on women, and we now may know why.
Researchers at the University of Colorado School of Medicine conducted an online survey of 54 people.
Men were twice as likely to report they wouldn't do CPR on a woman for fear of being accused of sexual assault or inappropriate touching.
Women said they were concerned about hurting a woman in need of CPR.
A separate study of 75 people using virtual reality also found they were less likely to perform CPR on a woman.
Health experts urge anyone trained in the life-saving measure to perform it on a cardiac arrest victim regardless of gender.