Cited: BEIL, LAURA. “The Snack-Food Trap.” Newsweek 160.19 (2012):44-47. Academic Search Complete. Web. 9 Feb. 2013
Cited: BEIL, LAURA. “The Snack-Food Trap.” Newsweek 160.19 (2012):44-47. Academic Search Complete. Web. 9 Feb. 2013
One way in which eating behaviour is controlled is by a process called homeostasis. This involves mechanisms which both detect the state of the internal environment and also correct the situation to restore that environment to its optimal state. The body has evolved two separate systems, one for turning eating on and another for turning it off. Glucose levels play an important role in producing feelings of hunger. When there is a decrease in blood glucose, this increases the feeling of hunger which is activated by the lateral hypothalamus in the brain. This contains a neurotransmitter called the neuropeptide Y which causes the individual to consume food, therefore resulting in the glucose levels to rise again. This rise in glucose levels activates the ventromedial hypothalamus which leads to feelings of satiation. The ventromedial hypothalamus contains an area called the paraventricular nucleus which is believed to cause a condition called hyperphagia (over eating). This is turn inhibits further consumption until the blood glucose levels have decreased again.…
Many American’s are complaining about the weight they are gaining due to the fast food industry. They put their blame towards the industry for their current health issues, when they were the ones to make that choice to eat there. Everyone has their own choice on what they eat, but what if your brain is actually making you make that choice for you?…
If their diet is filled with processed and packed foods that contain fat, calories and chemicals, they are not eating healthily and are just storing more pounds in their bodies. The food they consume turn to sugar once inside the body thus the reason why people become fat. In order to still eat and lose weight, the Diet Solution Program recommends eating fat and calorie-burning foods instead.…
One of the major causes for obesity is overeating. The stability between calorie ingestion and energy outflow determines a person's weight. If a person is ingesting more…
In Chapter 1 of Mindless Eating by Brian Wansink, PH.D., the statement "We overeat because there are signals and cues around us that tell us to eat." is discussed. Wansinks main focus is on how cues influence each of the multitude of food decisions that we make each day. Cheeseburger, fries, and Coke, or grilled chicken, rice and veggies? Strawberries and yogurt, or pie and ice cream for desert? Munch on a snack while lounging in front of the television, or sip a bottle of water? As stated in the title "Mindless" Eating the cues that influence and direct these decisions are unconscious.…
One important mechanism to consider is the role of homeostasis in all mammals. Homeostasis is how the body maintains a constant internal environment. Our diet is essential to homeostasis as it provides the nutrients that allow physiological processes to be regulated within narrow limits. The body has evolved two separate systems – one for turning eating ‘on’ and one for turning eating ‘off’. Glucose levels are important in producing feelings of hunger – the less glucose present, the greater the hunger. Our lateral hypothalamus is activated when there is a decline in glucose levels, leading to feelings of hunger. A neurotransmitter found in the hypothalamus, called neuropeptide Y (NPY) is particularly important in turning on eating. Wickens found that if NPY was injected into the hypothalamus of rats, NPY would cause them to immediately begin feeding, even when satiated. This shows how a brain neurotransmitter is capable of controlling eating behaviour by causing an individual to begin feeding.…
Obesity can be attributed to numerous factors, the predominant factor being an uneven amount of calories consumed relative to calories being expended. This phenomenon results in excess caloric energy being stored as fat, and thusly contributing towards weight gain. Additionally, there also happens to be a strong positive correlation between Body Mass Index (BMI) and food cravings (Chao et al., 2014). According to Chao et al. in 2013, food cravings have been defined as an irresistible urge to consume, which can be associated with less excitability in the reward center of the brain, or the dorsolateral prefrontal cortex (Cho et al., 2013). The dorsolateral prefrontal cortex (DLPFC) also plays a major role in emotional regulation and cognitive…
Knowing the causes of a certain situation will help sufferers of obesity take the first step to eliminating the problem altogether. There are several causes that can lead to obesity and these are different for every individual. Overeating and under exercising are definitely causes that lead to obesity. However, there is much more to the iceberg under the water. Behavioural, social, environmental and genetic factors may also play a role in the development of obesity. Many individuals undergoing stress of some sort, whether it is due to their family, friends, career and society, they resort to food; they believe it is the way to cope with their dilemmas. Others simply lack sheer will power and self control. The public is exposed to different kinds of foods and they are advertised in an exceptional manner. Although, fast food tastes well and it is easily accessible, it is important to remember that such foods are not doing justice to the human body. Eating fast foods on the rare…
There are biological and environmental factors which contribute to the obesity epidemic today. A person’s genetic makeup can play a role in obesity because the genes are what instruct a person’s body to react to changes in one’s environment. Environmental factors also play a role in obesity. When people consume convenience foods rather…
Furthermore, evidence for the role of operant conditioning, which is related to food being used as a reward, comes from Wansink at al who noted that people can turn to food and eat excessively for comfort, using food as a reward. However, operant conditioning alone cannot explain obesity, as we know there are biological factors which affect how rewarding certain foods are, therefore the behavioural approach as an explanation of obesity can be seen as reductionist.…
Those that are obese need to be persuaded to choose better food and drinks that will promote health instead of the opposite. There are many factors to consider. There are also many decisions to be made. Some of these decisions could be hard to swallow, but over time, they could become very…
In "Why do we get fat?" Gary Taubes argues that obesity is caused by the "highly processed grains" and "sugars" that are consumed. Many would argue that it's the over eating that makes a person fat but really it's just the fact that they're eating the wrong things. The targeted audience would be health researchers and people who are fighting obesity. The purpose of this article is to inform people that they're are certain foods when eating a lot of, leads to obesity. People expect to lose weight by lessing the food they eat but continue to eating carbohydrates that don't benefit their body. The effect this has on the audience is that they can't expect to lose any weight if they resume eating food that store fat instead of releasing them.…
There are many causes of obesity and while genetics tend to play a role in obesity, there is no denying that environmental and psychological factors are also to blame. A lack of exercise and the overly excessive availability of junk food are two of the main factors…
Some people may be surprised by the fact that dieting can actually cause obesity later. It seems like a paradox, but it really isn't. When someone else controls the way you eat, it's very natural to rebel. Also, when someone diets, it slows down their metabolism, and when a person starts eating like they used to, the metabolism doesn't have any time to adjust to that, and there is a weight gain. Plus, dieting lowers a person's blood sugar, which can trigger depression, then trigger binge eating, which leads to weight gain (Drohan 30-32). This may all seem like theory, but there have been two recent studies to explore it further. Harvard Medical School put together a study, testing this theory, and the results were surprising. What they found after testing 8,203 girls and 6,769 boys was that the adolescents who dieted frequently actually gained more weight each year than other children. Both the males and females suffered from the boomerang effect of dieting, and gained, on average, two pounds more than the non-dieters. They then…
In America, over 35% of all adults are obese. Though obesity rates in Vermont are among the lowest in the country (25%), the current obesity epidemic is still alarming ("Adult obesity facts," 2012). Heart disease, diabetes, cancer, stroke, high cholesterol, and high blood pressure are all directly linked to obesity. While the physical effects of obesity have been researched extensively, the mental health effects still aren’t entirely known. Obesity debates claim that though food addiction is very much a real thing, it is not a mental illness though it may lead to other mental illnesses such as depression, insomnia, low self-esteem, and eating disorders (Marcus & Baron; Simmonds).…