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Donít Overwork Your Brain- It can Make You Dangerously Fat!

by Tanya Thomas on September 6, 2008 at 1:56 PM
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Donít Overwork Your Brain- It can Make You Dangerously Fat!

If you find yourself gorging on food after some number crunching or heavy intellectual activity, don't worry because it's not your fault. That's just the way you're brain is wired! A new study reiterates this fact, claiming that activities like reading or working on the computer tends to increase your calorie intake.

The new research led by researchers from Universitť Laval has found that thinking hard makes people hungrier.

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The team led by Dr. Angelo Tremblay measured the food intake of 14 students after each of three tasks: relaxing in a sitting position, reading and summarizing a text, and completing a series of memory, attention, and vigilance tests on the computer.

After 45 minutes at each activity, participants were invited to eat as much as they wanted from a buffet.

The researchers had already shown that each session of intellectual work requires only three calories more than the rest period.
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However, the new study showed that despite the low energy cost of mental work, the students spontaneously consumed 203 more calories after summarizing a text and 253 more calories after the computer tests. This represents a 23.6pct and 29.4pct increase, respectively, compared with the rest period.

The blood samples taken before, during, and after each session revealed that intellectual work causes much bigger fluctuations in glucose and insulin levels than rest periods.

"These fluctuations may be caused by the stress of intellectual work, or also reflect a biological adaptation during glucose combustion," hypothesized Jean-Philippe Chaput, the study's main author.

"The body could be reacting to these fluctuations by spurring food intake in order to restore its glucose balance, the only fuel used by the brain.

"Caloric overcompensation following intellectual work, combined with the fact that we are less physically active when doing intellectual tasks, could contribute to the obesity epidemic currently observed in industrialized countries.

"This is a factor that should not be ignored, considering that more and more people hold jobs of an intellectual nature," he added.

Source: ANI
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