by USC Dornsife College – Technology Networks –
The pace of your DNA aging may help predict whether your brain stays sharp or declines by the time you reach your 50s, and childhood socioeconomic background can make that decline more pronounced, according to researchers at the USC Dornsife College of Letters, Arts and Sciences and the University of Virginia.
In a decades-long study of hundreds of twins, the team found that those whose DNA showed signs of accelerated biological aging were more likely to experience IQ decline from childhood to midlife. The drop was steepest among those raised in lower-income households.
