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Blood sodium levels linked to cognition in older adults

IANS  |  New York 

A lower level of in the blood may affect cognitive functions with advancing age, a new study has warned.

is a condition that occurs when the level of in the blood falls below 135 Millimoles Per Litre (mmol/L).

The results indicate that levels may help preserve cognition as individuals age.

"Slightly lower levels in the blood are likely to be unnoticed in clinical practice," said the of the study, from the Anschutz Medical Campus.

"Because both slightly lower serum levels and mild changes in cognitive function are common occurrences with advancing age, future research on this topic is important -- including determining whether correcting lower levels affects cognitive function," Nowak added.

For the study, to be published in of the American Society of Nephrology, researchers examined information on 5,435 asymptomatic community-dwelling men aged 65 years and above who were followed for a median of 4.6 years.

A total of 100 men had serum levels indicative of

The researchers found that slightly lower levels in the blood were related to both and declines in cognitive function over time.

Compared with men with levels of 141-142 mmol/L, men with levels of 126-140 mmol/L were 30 per cent more likely to have at baseline and 37 per cent more likely to experience cognitive decline over time.

They also found an association of high serum (143-153 mmol/L) with cognitive decline over time.

--IANS

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(This story has not been edited by Business Standard staff and is auto-generated from a syndicated feed.)

First Published: Fri, February 09 2018. 20:28 IST
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