Health

Asthma study sparks debate about safety of cooking with gas

New research that links cooking with natural gas to around 12 percent of childhood asthma cases has sparked debate about the health risks of kitchen stoves, as well as calls in the United States for stepped-up regulation.

Medical research

Uncovering how air pollution causes lung cancer

Cigarette smoking is the No. 1 risk factor for lung cancer. Exposure to second-hand smoke can also increase the risk of lung cancer. This is what scientists have known for a long time. What they did not know until now is ...

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