(The Christian Post) While recent research has warned of the potential drawbacks of America’s declining fertility rate, a new study has found that having three or more children negatively affects late-life cognition.
“To the best of our knowledge, our study is the first to demonstrate a causal effect of higher fertility on late-life cognition,” researchers Eric Bonsang and Vegard Skirbekk explain in their paper “Does Childbearing Affect Cognitive Health in Later Life? Evidence From an Instrumental Variable Approach” published in Demography, the flagship journal of the Population Association of America.