Unit 2: Your Body And You - Language

Junk food's effect on our body Fast food nutrition should make up a minimal part of a healthy diet. Fast foods and junk foods are high in fat, sodium and sugar, which can lead to obesity and a range of health problems, including diabetes, heart disease and arthritis. Junk food doesn't contain the nutrients that your body needs to stay healthy. As a result, you may feel fatigued and lack the energy you need to complete daily tasks. The high levels of sugar in junk food puts your metabolism under stress. Because fast food and junk food don't contain adequate amounts of protein and good carbohydrates, your blood sugar levels will drop suddenly after eating, leaving you feeling annoyed, tired and craving sugar. Junk food contains large amounts of fat, and because fat accumulates in your body, you'll gain weight and could become obese. The more weight you gain, the more you'll be at risk for serious illnesses. The high levels of fat and sodium in junk food can cause high blood pressure or hypertension. In the short term, high levels of dietary fat lead to poor mental performance. You'll feel tired and have trouble concentrating because your body might not be getting enough oxygen. The high levels of fat and sodium in junk food and fast food can contribute to heart disease by raising blood cholesterol levels and contributing to arterial plaque build-up. The high levels of fatty acids found in many junk foods and fast foods can lead to fatty liver deposits, which, over time, can cause liver disease.