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EEG test - Better Health Channel
The electroencephalogram (EEG) is a medical test used to measure the electrical activity of the brain, via electrodes applied to your scalp. Another name for EEG is brain wave test. EEG can help diagnose a number of conditions, including epilepsy, sleep disorders and brain tumours. A person with epilepsy may experience a seizure, triggered by the various stimuli used in the procedure, including the flashing lights.
Sleep - Better Health Channel
Sleep is essential for good health. It refreshes the mind and repairs the body. Sleep isn't a static state of consciousness. The brain is active during sleep and moves through distinct stages of sleep, over and over, every night. Lack of sleep can cause fatigue and mood changes as well as problems with concentration, memory and coordination.
Sleep problems - Insomnia - Better Health Channel
Insomnia means difficulty with either falling or staying asleep. Usually, people keep themselves awake by worrying about going to sleep. Insomnia can be treated at home, but chronic or long-term sleep problems may need professional treatment.
Hypersomnia - Better Health Channel
Hypersomnia means excessive sleepiness. There are many different causes including inadequate sleep, shiftwork, sleep disorders, medication, and medical and psychiatric illnesses (including depression). The major features of hypersomnia vary from one person to the next, depending on age, lifestyle and underlying causes. A major danger from hypersomnia is the increased risk of accidents.