Serum Leptin Levels and Body Weight

Obesity: One of the ancient trait we have is to store food in our body when we need that in the event of the famine. Back in the old days, we use to prey on other animals and hunt and we were agriculturist. But, in the modern world, there are a lot of people that just eat and doesn’t exercise or not, let the calories burn. They also overstuff themselves, letting the food they had before sit there and convert into fat. This is the ultimate reason for humans to get overweight. This tells us that our body was made to eat food in a limited amount and exercising.

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.

In the United States, Obesity is one of the most common physical features for both men and women. Obesity has become one of America’s main health crisis, due to poor eating habits along with lack of exercise leads the cause of obesity. Many people do not participate in sports activities or is capable of working out every day. In result, their body is not able to lose the amount of calories of the harmful food. This debate consist of rather it is lack of exercise, or the most popular subject too much fast food. Majority of obese people are known for eating out a lot and not being aware of the amount times they eat.

America's children are not getting enough exercise, and the health risks due to obesity are becoming epidemic in nature. Even First Lady Michelle Obama is supporting an initiative to help children become more active and to provide for exercise (at least 30-60 minutes per day) in all schools. Even limited amounts of exercise can have great health benefits. When humans exercise, the brain produces chemicals that help enhance mood, limit cravings for sugars, and contribute to healthier joints, muscles, the heart, and kidneys. In turn, this translates into more productive work time, the ability to sleep better, increase memory, and reduce dependence on medications. Children are so vulnerable to this health risk that if it continues, over 60% of graduating seniors will be clinically obese. Written by a medical journalist, the book is designed for the lay reader but has a number of documented scholarly sources.

Along with Skiffy, Heart Disease is also a factor in obesity. Patients with heart disease are more prone to obesity because of physical activity restrictions. Stefen et al found that “children who were of normal weight at baseline became obese after their activity had been restricted”(Babaoğlu et al

Worldwide over the last twenty years there have been many research studies into the causes of obesity. While many correlational links have been found, it is safe to say that obesity is a complex multi-faceted problem. Researchers have found a relationship between fetal malnutrition and later in life obesity, as well as a relationship between the thrifty genotype and inability to lose weight. Both of these correlations to obesity are thing that an individual has no real control of so they will not be examined in this essay. Relationships have also been found between increased caloric intake, decreased physical activity, and sleep deprivation with obesity, which are all things we can control so they will be discussed in this essay.

The basic aim of the paper is to carry out research work on the social concern which I have selected obesity. The topic of obesity has been selected because it has become a major social concern of the United States as well as other industrialized countries. Information related to the research of obesity will be helpful for determining major causes and adverse consequences which are associated with obesity in the U.S. This topic was selected with the hopes in finding effective ways which can be used for preventing the ever increasing numbers of obesity in the world. While a lot of people try to blame children, and even adults, being overweight and obese on genetics, that does not play as crucial of a role as people try to make it sounds. Some

In 1964 Fabry et al. randomly selected and surveyed a group of 179 males regarding their eating habits (3). Subjects were then divided into groups based upon the number of meals they consumed per day. Skinfold thickness measurements were taken to determine body fat percentage. Fabry et al. found that as meal frequency (MF) increased, the percentage of overweight subjects decreased within each study group (3). Since that time, the correlation between increased MF and weight loss has become a highly debated topic in weight loss or maintenance.

The OB mouse’s body couldn’t produce leptin and that was the reason it was fat, had lots of abdominal fat, and was hungry all the time.

A person is more likely to develop obesity if one or both parents are obese. Genetics also affect hormones involved in fat regulation. For example, one genetic cause of obesity is leptin deficiency. Leptin is a hormone produced in fat cells and also in the placenta. Leptin controls weight by signaling the brain to eat less when body fat stores are too high. If, for some reason, the body cannot produce enough leptin or leptin cannot signal the brain to eat less, this control is lost, and obesity occurs. The role of leptin replacement as a treatment for obesity is currently being

Leptin (OB protein) is a peptide hormone that serves as a communication link between the brain and the fat tissue (Strosberg and Issad 1999; Campfield et al. 1996). It is secreted by the adipose tissue, circulates in the blood and then acts on the central nervous system, a system that regulates most functions of the body, including energy balance and feeding behaviours (Campfield et al. 1996). Leptin and its receptors are both important in the regulation of body weight through coordinated regulation of a person’s feeding behaviours, autonomic nervous system, body energy balance, and metabolism

Obesity is steadily and inexorably becoming the greatest health problem in the developed world. It has recently been estimated that 237,600,000 teenagers² are overfed and overweight, a number that rivals the number who are underfed and underweight. Overweight becomes the disease of obesity when excess fat has accumulated to the extent that it may adversely affect health. This point is most commonly defined by the body mass index (BMI). Although a BMI >25 can be associated with a reduced life expectancy

Effects of aerobic and/or resistance training on body mass and fat mass in overweight or obese adults, (Shields, Willis, Piner, 2012). The reason for this examination was looked at the impacts of comparative measures of oxygen consuming and protection preparing on weight and fat mass in overweight adults.  Participants were 119 stationaries, overweight or corpulent grown-ups who were randomized to one of three 8-mo practice protocols. According to Shield (2012), The finding of this investigation was criteria were age 18 to 70 years, inactive (practicing ≤1– 2 times/wk), overweight or respectably large (weight file 25– 35 kg/m2), and with gentle to direct dyslipidemia (either LDL cholesterol 130– 190 mg/dl or HDL cholesterol ≤40 mg/dl for men or ≤45 mg/dl for ladies). Insurance getting ready and changes in entire weight and aggregate fat mass. despite whether oxygen devouring or insurance getting ready is prevalent in starting changes all in all body structure it gives AT alone is the perfect technique for action for diminishing fat mass and total weight, (Shields, Willis, Piner, 2012).

One topic that has been talked about for many years within Kinesiology is the debate on whether exercise or diet is more important for losing weight and maintaining weight loss. While both or important for a person's individual health, a person's diet is essentially the foundation for a healthy lifestyle and an important factor in losing weight and gaining nutrients that can help the body develop. Many studies and experiments have shown that a healthy diet goes a long way in helping people lose more weight, but more importantly teaches them how to continue to treat their bodies in a healthy manner. Dieting has been shown to have a bigger impact on weight loss than exercise has. For this reason, it can be said that a good diet is more effective for weight loss as compared to exercise alone.

* Atherosclerosis: Is the accumulation of fatty material in the inner walls of the arteries.