Below is an instruction from Human. Write a response.
    ### Instruction:
    What is (are) Snoring ?
    ### Response:
    Snoring is the sound you make when your breathing is blocked while you are asleep. The sound is caused by tissues at the top of your airway that strike each other and vibrate. Snoring is common, especially among older people and people who are overweight.    When severe, snoring can cause frequent awakenings at night and daytime sleepiness.
    