Complex sentence: Quantitative and qualitative studies show that sexual satisfaction can improve with age, and present data such as: half of women are sexually active into old age; Trompeter S. E., Bettencourt R., Barrett-Connor, E. (2012).
Split into simpler sentences: Quantitative and qualitative studies show that sexual satisfaction can improve with age, and they present data such as the following. Half of women are sexually active into old age Trompeter S. E., Bettencourt R., Barrett-Connor, E. (2012).