Obesity and drowsiness may cause day sleepiness

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Obesity and drowsiness may cause day sleepiness

Posted: 05/11/2015 01:21 PM IST
Obesity and drowsiness may cause day sleepiness

Many feel sleepy at their work place even after a good sleep at night. The new research revealed that obesity and depression could be the reason for the day drowsiness.

To prove this, the researchers measured self-reporting of excessive daytime sleepiness (EDS) at baseline and again an average of 7.5 years later in 1,395 men and women. Also depressed individuals in the study also had high incidence of EDS. Physiologic sleep disturbances, including taking longer to fall asleep and waking up in the middle of the night, explained their daytime drowsiness.

Feeling overly tired during the day can reduce job productivity and increase errors and absenteeism and may lead to more serious issues like automobile accidents. These findings could lead to more personalized sleep medicine for those with EDS.
“Obesity and weight gain predicted who was going to have daytime sleepiness,” said Julio Fernandez-Mendoza, assistant professor of psychiatry at the Penn State College of Medicine in the US. “Moreover, weight loss predicted who was going to stop experiencing daytime sleepiness, reinforcing the causal relationship,” he added.

The association between body mass index and sleepiness was independent of sleep duration. Obese people may be tired during the day, no matter how much they sleep at night.

The primary underlying mechanism that makes obese people feel overly tired is likely low-grade chronic inflammation. Fat cells, particularly from abdominal fat, produce immune compounds called cytokines that promote sleepiness, among other effects.The researchers published their findings in the journal Sleep.

By Lizitha

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