The Correlation Between Body Mass And Brain Function

1526 words - 7 pages

There is a strong correlation between obesity and brain performance.Being overweight or obese causes poor brain performance. When there is an excess of cholesterol in the human body, there will be delays in motor skills, memory, and constant exhaustion. Simply being overweight or obese causes all these negative effects. Being overweight or obesemeans weight numbers are greater than what is considered healthy. In other words,the higher the weight number, the higher the chance of catching a disease.
According to the Center for Disease Control and Prevention categorizes overweight and obese people by applying the height and weight of a person to evaluate the Body Mass Index (BMI). For example, if a person's height is 5'9", weighs 124 lbs and their BMI is below 18.5, they are considered underweight. If a person with the same height (5'9) weighs 169 to 202 lbs and their BMI is 25.0 to 29.9, they are considered overweight. Lastly, an adult who is 5'9" and weighs 203 lbs or more and their BMI is higher than 30, is considered obese.
People might think that our brains have no association with body fat and that our body composition is not applicable to the brain. However, research has disproved this. A study conducted by University of California, Los Angeles showed that obese people have on average 8% less brain tissue and overweight people have 4% less brain tissuecompared to thinpeople. In addition,thin peopleare much less likely to get Alzheimer's disease than overweight people (Gunstad, J.2008).Therefore, being overweight affects our brain functions negatively.
Furthermore, scientists showed that overweight people have a higher probability of Alzheimer's disease. Alzheimer’s disease (AD) is an age associated and inevitable brain disorder, which develops constantly and causes memory loss, behavior, personality shifts, and a failure in other intellectual abilities like thinking, decision-making, and language skills. Moreover, these fatalities are associated with collapse of the connections between definite nerve cells in the brain and the conditional death of majority of these cells. AD is one of many disorders that describes the mental disorder, which are portrayed by emotional and behavioral dillema (National Institute on Aging, National Institutes of Health, U.S. Department of Health and Human Services, 2003, pp. 7-9).
The brains of people's AD are reducedbecause themass of adipose tissue increases. Scientists proved this by experimenting on human brains from dismembered heads (Ho,A.2009). According to these studies, we can clearly and confidently state that being overweight is not good for our health.
The main trigger of AD is leptin, which is a hormone that signals to our brains the amount of fat that our body has to deal with. Thus the brain can adapt to eating to save fat reserves at a certain level and the more fat we have, the higher the level of leptin. At first, scientists thought that leptin might be used to deal with obesity, but...

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