Brain Aging May Depend on Childhood Intelligence

The research found that more than two-thirds of the association between cognitive ability in the elderly and cortical thickness was accounted for by differences in IQ decades earlier in childhood.

Health & Family

Older people who stay sharp tend to have a thicker cortex, which is the outermost region of the brain that includes the areas responsible for judgment and complex thought. But while preserving the cortex is important for successful aging, a new study suggests that childhood intelligence — not anything specific done in old age — largely accounts for why some elderly people have more cortical tissue and better cognition.

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Dad’s Life Stress Exposure Can Affect Offspring Brain

I hope my son doesn’t face any greater difficulties because of my stressful life experiences.

Biosingularity

Sperm doesn’t appear to forget anything. Stress felt by dad—whether as a preadolescent or adult—leaves a lasting impression on his sperm that gives sons and daughters a blunted reaction to stress, a response linked to several mental disorders. The findings, published in a new preclinical study in the Journal of Neuroscience by researchers at the University of Pennsylvania, point to a never-before-seen epigenetic link to stress-related diseases such as anxiety and depression passed from father to child.

While environmental challenges, like diet, drug abuse, and chronic stress, felt by mothers during pregnancy have been shown to affect offspring neurodevelopment and increase the risk for certain diseases, dad’s influence on his children are less well understood. The effects of lifelong exposures to dad on children are even more out of reach.

via Dad’s Life Stress Exposure Can Affect Offspring Brain Development | Neuroscience News.

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