In a US study from 2022, both men and women reported having more conflict with their mothers-in-law than their mothers, and mothers indicated having more conflict with their daughters-in-law than their daughters. Terri Apter, a psychologist and senior tutor at Newnham College, Cambridge University, who conducted more than two decades of research, and published in a book in 2008, found that 60% of women admitted the relationship with their female in-law caused them long-term unhappiness and stress. Two-thirds of daughters-in-law believed that their husband's mother frequently exhibited jealous, maternal love towards their son. Seventy-five percent of couples reported having problems with an in-law, but only 15% of mother-in-law/son-in-law relationships were described as tense.
