Is "slow love" the key to a successful relationship?
On Valentine's Day, new research shows a revolution is in the works when it comes to finding love that lasts. Biological anthropologist Helen Fisher studied the dating and sex lives of more than 35,000 single Americans. She says the research revealed an emerging "slow love" movement. A similar study found that couples with longer courtships were less likely to get divorced. Fisher joins "CBS This Morning" to share her findings.