Air pollution can irritate the eyes, throat and lungs. Burning eyes, cough and chest tightness are common with exposure to high levels of air pollution. People can react very differently to air pollution. Some people may notice chest tightness or cough, while others may not notice any effects.
Hand numbness is usually caused by damage, irritation or compression of one of the nerves or a branch of one of the nerves in your arm and wrist. Diseases affecting the peripheral nerves, such as diabetes, also can cause numbness, although with diabetes similar symptoms usually occur first in your feet. In very uncommon instances, numbness can be caused by problems in your brain or spinal cord, although in such cases arm or hand weakness or loss of function also occurs. Numbness alone is only rarely associated with potentially life-threatening disorders, such as strokes or tumors.
What is numbness? Numbness is an abnormal condition in which a person feels tingling or a loss of sensation. Numbness can occur anywhere on the body, but it is most often felt in the extremities, such as the hands, feet, fingers, and toes. There are many different causes of numbness. Numbness usually arises from a lack of blood supply to an area, nerve compression, or nerve damage. Numbness can also result from infection, inflammation, trauma, and other abnormal processes.