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Now Let's has a look at some stats and facts on cancer in China and around the world.
The World Health Organization has long predicted that cancer will overtake heart disease this year as the leading cause of death around the world.
And a latest report of an American cancer society says cancer is the world's leading cause of death and the "world's top economic killer."
The report shows that cancer causes more deaths and costs more in productivity compared to AIDS, malaria, the flu and other diseases that spread between people.
According to the report, about 7.6 million people died of cancer in 2008. Every year, about 12.4 million people are diagnosed with the deadly disease.
Cancer cost 895 trillion US dollars in 2008, which is equivalent to 1.5 percent of the world's GDP.
In China, the situation is severe. According to a 2009 investigation, one in every 4 to 5 death in China was due to cancer. About 2 million people in China die every year from cancer.
The rate of dying from cancer has increased more than 80 percent in last 30 years.
As the largest producer and consumer of tobacco in the world, lung cancer is the deadliest killer among all kinds of cancer in China.
But the WHO says at least one-third of all cancer cases are preventable.
Quitting smoking is the single largest preventable way to avoid cancer.
Dietary modification is another important approach. Medical experts have found links between overweight and obese people to many types of cancer, including oesophagus, colorectum, breast, endometrium and kidney.
Regular exercise, a healthy diet and maintaining a healthy body weight considerably reduces the risk of cancer.