Inflammation linked to lower intelligence, premature death

Written by: Nairita Das
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Washington, Sep 08 (ANI): Swedish scientists have revealed that inflammation is associated with lower intelligence and premature death.

"Those with low-grade inflammation performed more poorly on standardised intelligence tests, even after excluding those with signs of current illness. Inflammation also predicted an increased risk of premature death," said lead researcher Dr Hakan Karlsson.

The researchers from the Karolinska Institute in Stockholm, Sweden, used large population-based registers containing data collected over several decades. Inflammation and intelligence were measured at 18-20 years of age in nearly 50,000 young men, and deaths over the following 35 years were recorded.

"Although we knew that inflammation associated with infection or cardiovascular disease could impair brain function, this is the first time that similar associations have been shown in healthy young people," said Dr Karlsson.

"This suggests that even low levels of inflammation can have detrimental consequences for health and brain function," he added.

"One interesting possibility is the role of environmental factors during childhood," he added.

In the current study, childhood socio-economic status predicted the level of inflammation seen in young adulthood. For example, children of farmers had higher levels of inflammation than those whose fathers were non-manual workers.

The research has been published in Brain, Behavior and Immunity. (ANI)

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