Sleep problems
Sleep is a state of consciousness that happens every 24 hours. It is a period of rest and recuperation for the body, and much needed 'downtime' for the brain. The amount of sleep people need depends on their age, lifestyle, diet, personality and environment. Generally, we need less sleep as we age. Newborn babies tend to sleep for around 16 hours out of every 24, while adults average seven hours and the elderly, only six.
Sleep disturbances and disorders include insomnia, jet lag, sleep apnoea, snoring and restless legs syndrome.