Changes to DNA combined with socioeconomic factors can predict changes in IQ later in life. (Composite: Letty Avila. Image source: iStock.)
What your DNA – and childhood – reveal about midlife decrease in IQ
A multi-university twin study led in part by USC Dornsife researchers finds that accelerated biological aging, amplified by early-life disadvantage, is linked to cognitive decline later in life.
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.