diseases

Health and Medicine

Asthma

Asthma occurs when tissue in your throat begins to expand or swell. Muscles in these passages become tighter and cells begin to produce some sticky substance, which makes airways even smaller.

Health and Medicine

Cancer – A Killer Disease

Cancer is a dangerous disease in which certain cells in our body grow in an uncontrolled way. It is one of the world’s most serious illnesses. Together with heart attacks, it kills more people than any other disease in the world.

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