The Greek philosopher Zeno of Citium once said that we have two ears and one mouth so that we can listen twice as much as we speak. It’s a sentiment many parents, grandparents – and US TV personality Judge Judy – are fond of repeating. And for good reason too.
But the mouth acts as more than a means of communication, or entry for food and drink. It’s also a way of identifying some internal diseases.
For example, many of us will be familiar with the pesky mouth ulcer.