Rainforests are a place where you can find different kinds of species that includes animals and plants. It is a place where the temperature is warm and wet for all season for the reason that the plants equalize the flow of temperature. It absorbs carbon dioxide but responsible for producing and releasing natural oxygen that human usually breathes. .

             The structure of rainforests is quite different from a regular forest because this is the place where you can find tall trees, plants are in layers and the light of the sun cannot reach the ground of the forest. The world's rainforest natural activity such as producing mineral oils and dried plants is one of the activity that may possibly cure cancer because the natural putrefaction of it are clear, clean and unexploited. Products that can be found in the rainforest such as flowers, seeds, fruits, honey, resins, fungi and others are very good source of using as medicines. These products can be very helpful in the health of human being and time may come that this can help people to cure different kinds of cancers. One good example that can cure cancer is the Hericium erinaceus, found in forests at 2000 - 3400m, is a famous edible fungus and used as drug to cure cancer (Jinfeng, Z., Wenbing, W. & Yunfen, G., 2006). According to Ross (2005): .

             "The high species diversity makes rain forests highly prized for new medicinal drugs or agricultural crops. Drugs that originated in the rain forest range from early forms of the birth control pill, first manufactured from wild yams growing in Central America, to highly specialized medicines derived from the Madagascar rosy periwinkle used to treat a rare form of leukemia. And the drugs already in use represent just a fraction of the potential medicines the rain forests may hold. Of the thousands of plants identified as carrying potential anticancer compounds, more than half are native to rain forests.