Why do I have wax in my ears?
The ear canal is lined with cells that produce wax to protect the delicate ear mechanism. Wax traps dirt and bacteria, but it can sometimes build up and block the ear causing temporary deafness. When this happens, the wax may have to be syringed out with warm water.
Why is loud music bad for you?
Loud music can cause permanent loss of hearing, especially when it is fed directly into the ears through a personal stereo. Loud noise is one cause of deafness in later life. Hearing can usually be restored in deaf people by using a tiny amplifier, which is fitted either in or behind the ear. If the deafness is caused by damage to the nerves, hearing aids will not work and the hearing loss is usually permanent.
What makes me dizzy when I twirl round?
Twirling round for too long causes the liquid in the semicircular canals to swirl around too. When you stop the liquid keeps on swirling round, confusing the brain and making you dizzy. If you watch a dancer spin round, you will see their head does not move continuously, but remains still then jerks round and stops again as their body turns. This reduces the swirling effect. Astronauts have to cope with the dizzy effects caused by the movement of liquid through their balance mechanism.
Pictures Credit: Google
