Complex sentence: Impairments in social skills also occur in individuals who suffer from fetal alcohol spectrum disorders; these deficits persist throughout affected people's lives and may worsen over time due to the effects of aging on the brain.
Split into simpler sentences: Impairments in social skills can also occur in individuals who suffer from fetal alcohol spectrum disorders. These deficits persist throughout affected people's lives, and may worsen over time due to the effects of aging on the brain.