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NONINFECTIOUS DISEASE

NONINFECTIOUS DISEASE. What is noninfectious disease ? . Diseases that are not caused by pathogens in the body. Ex: cardiovascular disease, allergies, diabetes, cancer…. ALLERGIES: What is an allergy ?. A disorder in which the immune system is overly sensitive to a foreign substance

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NONINFECTIOUS DISEASE

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  1. NONINFECTIOUS DISEASE

  2. What isnoninfectious disease? • Diseases that are not caused by pathogens in the body. • Ex: cardiovascular disease, allergies, diabetes, cancer…

  3. ALLERGIES: What is an allergy? • A disorder in which the immune system is overly sensitive to a foreign substance • An allergy develops in response to various foreign substances that set off reactions in the body.

  4. What are allergens? • Any substance that causes an allergy.

  5. What is a histamine? • A chemical that is responsible for the symptoms of an allergy, such as sneezing and watery eyes.

  6. What is asthma? A disorder in which the respiratory passages narrow significantly.

  7. DIABETES: • What is insulin? Insulin enables cells to take in glucose from the blood and use it for energy. Diabetes is either the condition when the pancreas fails to produce enough insulin OR the body’s cells fail to properly use the insulin.

  8. As a result, a person with diabetes has high levels of glucose in the blood and may even excrete glucose in the urine. The person’s body cells, however, do not have enough glucose.

  9. Effects of Diabetes If untreated… • Weight loss • Weakness • Nonstop hunger Long Term… Blindness, kidney failure, heart disease

  10. 2 Forms of Diabetes • Type 1- Begins in childhood/early adulthood. The pancreas produces little or no insulin. People must then get insulin injections. • Type 2- Usually develops during adulthood. Either pancreas doesn’t produce enough insulin OR the body’s cells don’t respond normally to insulin.

  11. CANCER • Cancer is a disease in which cells multiply uncontrollably, over and over, destroying healthy tissue in the process.

  12. How Cancer Develops • As cells divide over and over, they often form abnormal tissue masses called tumors. • Not all tumors are cancerous, however some can be.

  13. Causes of Cancer • Inherited characteristics from parents. • Carcinogens- some substances or factors in the environment (Ex. Tar in cigarette smoke, ultraviolet light, etc.)

  14. Cancer Treatment • Surgery • Drugs • Radiation • Radiation uses high energy waves to kill cancer cells, however it also kills health some healthy, normal cells.

  15. Preventing Cancer • Avoiding carcinogens, such as those found in tobacco. • Eating a low fat diet that includes many fruits and vegetables. • Regular medical checkups

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