Dr Amir Khan has left people stunned after revealing the fascinating reason why one nostril feels more blocked than the other when you have a cold.

Ever noticed that a blocked nose means you're constantly breathing more heavily through one nostril than the other? To open one side of your nose and shut the other, your body swells tissue with blood ...

Changing weather, dust, or allergies often lead to the problem of a stuffy nose. It not only makes breathing difficult but can also cause headaches and disturb your sleep at night. Whether in children ...