This is correlation, but it is very unlikely to be causation. Having a bad health will certainly cause a person to have all kinds of problems. For example, if

This is correlation, but it is very unlikely to be causation. Having a bad health will certainly cause a person to have all kinds of problems. For example, if your food does not contain enough vitamin C, you are likely to get some form of scurvy[0], which might lead to loss of your teeth, but it will also lead to a lot of other problems. [0] https://en.wikipedia.org/wiki/Scurvy https://en.wikipedia.org/wiki/Scurvy