Ratey And Manning

Lastly this text says, “Early humans, who lived by hunting or gathering, didn’t always have enough food” (82). This quote shows the reader that humans are becoming less active

These findings insist on the idea that our ancestors evolved to be scavengers and gatherers because it was the only way to find nutrients. Early humans were required to search for food. Conditions required them to evolve in a way that the body stores energy, so when resources became scarce, they stayed healthy and could contribute to their community efficiently. Obtaining the ability to store energy in order for humans stay healthy was an extremely important factor. After our ancestors migrated out of East Africa, they evolved to wonder and scavenge for food. Now, humans are able to live comfortably in a single location. Compared to our ancestors constantly moving looking for food and shelter. (Jurmain et al. 350-351).

Staying cooped up inside not going outside only when necessary can negatively affect your physical health. Walking was cultivated by our ancestors. The physical benefits are eye-opening because most of them improve problems society is dealing with such as obesity, heart disease, diabetes, etc. For example, an article by the Mayo Clinic Staff states, “regular brisk walking can help you: Maintain a healthy weight. Prevent or manage various conditions, including heart disease, high blood pressure and type 2 diabetes. Strengthen your bones and muscles.” (Walking: Trim your waistline, improve your health), walking seems to improve physical health. Walking is more

Recent ancestors relied on hunting and gathering which provided them with proper nutrients that they needed and they maintained a healthy diet. Today, Americans drive to the supermarket and pick food off the shelves without considering what it could do to their bodies. Hungry For Change suggests that it is time for Americans to step away from unhealthy foods and take control of their lives so that they can live happier lives. To begin this new lifestyle, Americans must first reduce the main cause of their obesity.

The prevalence of diseases in the Western world that are affected by our diet have caused us to re-examine what we eat. The discordance hypothesis proposed by Eaton and Konner explains simply that what we are adapted to eat is in discordance with our modern diet. (Eaton & Konner 1985). Comparative studies have been done on primate and human diets to better elucidate the origins of our diet and how modern deviations affect us. In this paper I will examine what we have learned about the evolutionary history of our diet based on studying primates and how this effects our understanding of disease processes caused by our modern, Western diet.

The previously mentioned peak and the positions where obesity has greatly amassed revealed a genetic trait that tends towards obesity. In the 1960’s, people developed the “thrifty gene” hypothesis, saying that genes leading to obesity could be inherited. The hypothesis was supported by the knowledge that digestive metabolisms have been naturally selected to favor obese traits.

Although the mechanism of obesity development is not fully understood, it is confirmed that obesity occurs when energy intake exceeds energy expenditure. There are multiple etiologies for this imbalance, hence, and the rising prevalence of obesity cannot be addressed by a single etiology (Dehghan et al., 2005, p.

a very sedentary lifestyle for much of the population. According to Food Fight, one study found

may vary by population, sex, and age. In general, the sources imply that, in industrialized

The stigma of the sedentary lifestyle is not limited to working. Many sedentary habits develop at ones home. Watching television and playing on the computer have proven to be one of the least engaging metabolic activities. Riding, driving and reading have proven to have higher metabolic rates then watching television or playing a game on the computer. Working and watching television consumes many American’s time (Medical Center). Based on a study done in 2012 the average American under the age of two watches approximately thirty-four hours of live television a week and three to six hours watching taped programs a week (Hinckley). In the end, a small fraction of the day is left to burn calories and raise ones metabolic rate (Medical Center).

The origin of obesity is a very important question that has caused some controversy between doctors, scientists, and writers. The origins are thought to stem from

The topic that I have chosen to look at is obesity. The aim of this topic is to find out whether “the ignorance of genetics as a contra factor of obesity”. I have chosen to look at this topic because obesity is concerns me. Obesity has always been a bid debate for a long time now and I was intrigued to find out more about the topic and the cause of obesity. The fact that obesity has made deadlines news in recent years. There are a lot of misconceptions about obesity such as overweight is caused by a sow metabolism. There have been a lot of beliefs and myths about obesity in society today and he above myths is on of them. According to Donnellan (1998) ‘ ‘people who are overweight have told their doctors that they eat no more and

With over 22.5% of the current U.S. population considered to be clinically obese, compared to only 14.5% in 1980, there does not seem to be a cessation of this epidemic in sight (Hill & Peters, 1998). Goran and Weisners' (2000) proposal that "... the inherently lower resting metabolic rate in women versus men is responsible for the higher adiposity rates in women..." is wanting, especially since the potentially modifiable factors of; less physical strength, less daily free-living physical activity, and lower total energy expenditure are more likely the cause of the differences in observed adiposity between men and women. Since our genetic makeup has not appreciably changed in the last twenty years, we cannot strictly attribute the explosion of obesity to genetics. As these biological causes of obesity are disproved, a focus on the environment as a reason for obesity is taking centre-stage.

Moving from one place to another is a necessity for almost every living organism. Whether it be sliding, walking, jumping, crawling, or flying, movement is bound to happen sometime. Humans like to move from place to place quickly without doing any work. Since running is work, humans generally avoid it if possible. There tends to be some unfavorable expression like a grimace or a sigh accompanying the quote, “I think I have to go running.” Although hated among many people throughout the world, the positive sides of running can be enough to turn the lazy into the hardworking. Running is an excellent choice for physical and mental enhancement because it keeps one active, relieves stress, and is a good self-esteem booster.

As obesity has shown to reach epidemic proportions not only in developed regions but even in developing countries, this study has been conducted to understand the relationships between energy, activity levels and carbohydrate intake (WHO, 2000). Personal data collected reflected that in comparison, the subject’s EE was consistently greater that the EI over the two experimental days, therefore the output was greater than that of the consumed categorising the subject as active and as their body mass index (BMI) was calculated to be at 20g/m2 , the subject was categorised as healthy (Lyons et al., 2012). With the percentage energy intake from protein being 17%, fats 33% and carbohydrates 47%, the subject was within the range of the