Now that is welcome news! A pair of studies has shown that certain cognitive functions are strengthened by a more frequent sex life for both men and women. Both studies found significant relationships, after adjusting for age, education, wealth, physical activity, depression, cohabiting, self-rated health, loneliness and quality of life.
The earlier (2016) study (Sex on the brain! Associations between sexual activity and cognitive function in older age) utilized 6,833 participants aged 50–89 (3,060 men and 3,773 women) from the English Longitudinal Study of Aging. This research studied the relationship between certain cognitive functions and whether or not the participants had been sexually active at all in the previous 12 months, where sexual activity was defined as including intercourse, masturbation, petting or fondling. There were two cognitive tests: recall and number sequencing. For the recall task, respondents heard a list of 10 everyday words and were asked to recall them immediately and after a short delay. The number sequencing task required completion of a number sequence such as 1, 2, __, 4, where the correct answer would be ‘3’.
This study found that there were significant associations between sexual activity and number sequencing and recall in men, but that in women there was a significant association between sexual activity and recall, but not with number sequencing.
The later (2017) study (Frequent Sexual Activity Predicts Specific Cognitive Abilities in Older Adults) built on the earlier study. The goals of this research were to extend the earlier findings to a range of cognitive domains, and to determine whether increasing frequency of sexual activity is associated with increasing scores on a variety of cognitive tasks. As with the first study, sexual activity was defined as including intercourse, masturbation, petting or fondling. The study utilized 73 participants (28 males, 45 females) aged 50–83 years old, and demonstrated that overall cognitive scores were consistently higher in those who are sexually active compared to those than those who are not. Moreover, it shows increasing scores on two specific cognitive domains (fluency and visuospatial ability with increasing frequency of sexual activity (from never to monthly to weekly).
Here are two articles about the latest study, together with the study itself:
Frequent Sexual Activity Predicts Specific Cognitive Abilities in Older Adults
And here are two articles about the first (earliest) study, together with the study itself:
All the links have been added to Aging.