Our expert says:
Dear Energizer Bunny
Some people do need very little sleep. However, if this causes you to feel tired or impairs your concentration, or make you irritable and prone to anger outbursts, you may have a sleep disorder. You can have it tested at a sleep lab overnight - they do an EEG (something that measures the brainwaves) while you sleep to see if you have a normal sleep pattern and whether you get enough deep phase sleep (REM sleep) In general, you can monitor your cholesterol and blood pressure and do an ECG of the heart yearly.
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