It's time for some football and just as the season kicks off, there is a health warning — not for the players — but for all of you fans out there.

It’s okay to cheer for your team, but do it carefully, because you could harm your voice.

What would a game be like without enthusiastic fans?

So it's not surprising that many of these fanatics can lose their voices after a rousing sporting event. But now doctors are finding they could be seriously injuring their vocal cords in the process.

Watch the video.

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