A study from Montreal's McGill University found that frequent penile-vaginal intercourse may strengthen a woman's memory functions.
According to India Times, "To determine whether variation in penile-vaginal intercourse would be associated with memory performance, the researchers asked 78 heterosexual women aged 18-29 years to complete a computerised memory paradigm consisting of abstract words and neutral faces. Results published in the journal Archives of S*xual Behavior showed that frequency of s*x was positively associated with memory scores for abstract words, but not faces."
The reason for this might be growth in the area of the brain focused on the autonomic nervous system, memory, and emotion. This growth is attributed to the lovemaking habits of the test subjects.
Though the study is far from definitive, it may not hurt to increase your activity in this area, ladies!