Doctor warns people to stop biting your nails in stomach-churning video
![Doctor warns people to stop biting your nails in stomach-churning video](https://i2-prod.mirror.co.uk/incoming/article33119395.ece/ALTERNATES/s615/0_GettyImages-562879015.jpg)
Viewers said the video showing exactly why biting your nails is a bad idea put people off their food when they watched it
Viewers said the video showing exactly why biting your nails is a bad idea put people off their food when they watched it