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Global Information: Health
The modern day world is considerably healthier than it was in previous generations due to continuous developments in medicine, improved hygiene and all-round healthier eating. Life expectancy is almost without exception higher in richer countries. The Japanese have one of the highest life expectancy rates at 80 years. The average life expectancy in the world now is 64 years although as recent ago as the 1950s, the average life expectancy was 40 years. In poorer countries such as Sierra Leone people only live for an average of 37 years. 

Deadly diseases such as AIDS are killers throughout the world and Africa has been hit particularly hard by this deadly virus. Smallpox is another fatal disease that was believed to have been eradicated in 1977 although it still poses a threat in some parts of the developing world. Richer countries can afford to have more doctors and indeed there is an average of 1 doctor per 395 people in wealthy parts of the world. Elsewhere in the developing world, there is an average of only 1 doctor per 50,000 people. 

Some diseases are carried by insects and are known as insect-borne diseases. These normally occur in the tropical regions of the world. Malaria is an infamous insect-borne disease and is transmitted by mosquitoes. It can be a fatal disease if not treated promptly. Symptoms include fever, diarrhea, sweating and headaches. Anti-malarial drugs can be purchased to prevent Malaria. What these drugs do is kill the malarial parasites before they have developed enough to harm the human body. Some mosquitoes in parts of the world have developed resistance to anti-malarias. Hepatitis is another potentially fatal disease. It involves inflammation of the liver. Signs of hepatitis include fever, vomiting, nausea, abdominal aches and pains and a yellowing of the skin pigment. Typhoid is a disease that affects the gut and is generally contracted through consumption of contaminated food and water. Flu symptoms as well as headaches, vomiting, diarrhea, constipation and eventually pink spots are signs of Typhoid contraction. Dengue fever is a virus transmitted by insects and is therefore another of the insect-borne diseases. It is transmitted by mosquitoes that are active, unlike many other mosquitoes, during the day. Signs of dengue fever include heavy fever, muscular pains, nausea, vomiting and a rash of red spots.
 

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