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The heart is located in the center of the chest, with part of it tipped slightly so that it taps against the left side of the chest.
Drugs are in development that may cure asthma and hay fever once and for all. They target leukotrienes, which are known to cause tightening of the air passages in the lungs and increase mucus productions in nasal passages.
Walt Disney helped combat malaria by making an animated film in 1943 called The Winged Scourge. This short film starred the seven dwarfs and taught children that mosquitos transmit malaria, which is a very bad disease. It advocated the killing of mosquitos to stop the disease.
Coca-Cola originally used coca leaves and caffeine from the African kola nut. It was advertised as a therapeutic agent and "pickerupper." Eventually, its formulation was changed, and the coca leaves were removed because of the effects of regulation on cocaine-related products.
A strange skin disease referred to as Morgellons has occurred in the southern United States and in California. Symptoms include slowly healing sores, joint pain, persistent fatigue, and a sensation of things crawling through the skin. Another symptom is strange-looking, threadlike extrusions coming out of the skin.
![Common skin signs are often evidence of an illness or disorder. A fissure is a crack-like sore or ...](https://biology-forums.com/gallery/47/medium_665046_01_03_17_6_26_25_261392239.jpeg)
![Visual tracking of a pendulum by a normal control subject (top) and three schizophrenics. (Adapted ...](https://biology-forums.com/gallery/30/medium_548020_01_06_17_6_32_31_30175173.jpeg)