Transcript power point
DEVELOPMENT & HEALTH Why will the average school kid in Sudan only expect to live until the old age of 48? DEVELOPMENT & HEALTH Health problems in an ELDC By the end of the lesson you will be able to: 1. Describe health problems in an LEDC 2. Name different infectious and non-infectious diseases. 3. Describe causes, effects and controls for diseases. DEVELOPMENT & HEALTH The quality of people’s health If many people are is a developmental indicator suffering ill health then this indicates a low level of development. It is also a CAUSE of low levels of development Person becomes weak Little food to eat poverty VICIOUS CYCLE OF DISEASE illness Unable to work DEVELOPMENT & HEALTH Causes of ill-health Spread by water cholera typhoid Spread by flies Infectious diseases malaria Sleeping sickness other AIDs measles noninfectious diseases Diet-deficiency Under-nutrition scurvy They spread in two main ways: 1. people drink polluted water. 2. Tiny worms that burrow into the skin when people wash Flies and mosquitos spread diseases by biting people and transferring contaminated blood AIDs is the biggest killer in subSaharan Africa. People not eating enough food. Common in poor areas that have suffered from drought. others cancers Heart diseases Common in MEDC and LEDC. DEVELOPMENT & HEALTH INFECTIOUS DISEASES •Spread by water WATER-BASED DISEASES These are spread by parasites living in the water and infecting an intermediary host/vector that gives us a disease. They can include;The freshwater snail infected by a fluke that infects people and carries SCHISTOSOMIASIS. DEVELOPMENT & HEALTH INFECTIOUS DISEASES •Spread by flies WATER- RELATED DISEASES These are where the organism which causes the disease lives in water for at least part of its lifecycle. It can include the mosquito that breeds in water and causes MALARIA. DEVELOPMENT & HEALTH Other INFECTIOUS DISEASES AIDS There is a virus that can be shared through the transfer of bodily fluids. It is called HIV, and destroys part of your immune defence system. If you catch it, there is a chance it will develop into fullblown AIDS, and then even an infection like tuberculosis or another virus like measles can kill you. It is caught often by needle-sharing drug users, through un-screened blood products being given in clinics, or by having unprotected sex with a victim. DEVELOPMENT & HEALTH NON-INFECTIOUS DISEASES • Diet deficiency Malnutrition often happens when diets are based on only one main food source and lacks variety supplied by nutritious foods. Areas typical of this are the Indian subcontinent and South-east Asia. A significant proportion of the population are unhealthy and unable to work for any length of time. They are susceptible to other simple diseases and soon the whole economy suffers. DEVELOPMENT & HEALTH Other NON-INFECTIOUS DISEASES Diabetes is where the body cannot deal with the sugars in your food that should be stored to release energy when needed. You can go into a diabetic shock if the balance is badly wrong. Cancers are where the cells of the body keep dividing and won’t stop, as they should. A tumour grows and feeds off your blood supply, eventually killing you. Bits of the tumour can break off and travel to other parts of the body to grow there. DEVELOPMENT & HEALTH How can you control these diseases? Produce more food Improve health facilities Provide clean water Provide health education Increases infant mortality Makes people weak & lethargic Which of these are: Causes Effects Controls? malaria Leaves victims with handicap People are needed as carers Many diseases are killers AIDs cholera