Give an account of how a poor diet and obesity can increase the chance of a person developing Coronary Heart Disease (CHD)
A good diet consists of consuming a full range of all the various nutrients needed for proper function of the body and bodily systems. When someone consumes the correct nutrients in the correct proportions, they are considered to have a “Balanced Diet”. However, when someone is not consuming the correct nutrients or not consuming the correct amount of nutrients they are said to have a poor diet or “malnutrition”. Malnutrition is often misconceived to be just the lack of nutrients in the body causing illness and Anorexia; however this is in fact incorrect as malnutrition can also be defined as the excessive consuming of nutrients which contain more energy than the body uses. This is most commonly known as “Obesity”. In Britain and most first world countries, obesity is one of the most serious effects of malnutrition. It can be extremely dangerous due to the build up of a certain fat known as “Adipose Tissue” under the skin and around major bodily organs. Someone can usually be defined as being obese if they have a BMI of over 30 (BMI can be calculated by dividing mass in Kg by height in Meters, squared).
Coronary Heart Disease (CHD) is a common disorder of the blood vessels that supply the heart muscle with oxygenated blood. It is a major cause of death in developed with Reports in the UK suggesting that 3-4% of men aged between 35 and 74 die each year due to the effects of CHD. In the reports for women, the risk appears to be about half of this figure. Each year around 156000 people in England and Wales die from CHD. The heart is used as a pump to pump blood around the body; this is done via the contracting of the hearts muscles. This process needs a continuous supply of oxygen in order to function, however if this oxygen supply is cut off or slowed down the muscle cannot contract and therefore the muscle will soon die. One of the...
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