This was an excellent explanation about this annoying issue we all have suffered sometimes.
When little I wasn't aware of the importance of cleaning the tongue, and it wasn't until my aunt who is a dentist explained to me, that I started to clean my tongue intensively everyday.
Taking care of our mouth is a serious subject, because its one of the worst places to have an infection.
Yeah, it is one of the major health issues and can be worse if not taken care off. I have seen some of the bacterial infections of tongue, believe me they are horrible.Thanks for the comment @dedicatedguy