Most people take their sense of hearing for granted until they lose it and realise how much they are missing. In most cases, an ear, nose and throat (ENT) specialist can correct hearing problems, but they can only do it if a condition is identified early. Therefore, hearing tests are crucial to preventing irreversible ear conditions that often lead to permanent hearing loss. However, detecting hearing issues can be tricky, particularly if you do not know how a healthy ear should respond.

The sinuses are pockets of mucous membranes around the face, most notably close to your nose. The exact number of them can vary from one person to the next, without any disadvantages to having fewer. Most of the time, you won't even be aware that your sinuses exist, but sometimes they can become inflamed, a condition known as sinusitis that can occur when you have a cold or the flu. Ordinarily, this isn't something to worry about, as it just causes a bit of discomfort for a week or so before going away on its own.