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Insomnia is generally caused by either:

  • psychological causes - depression, anxiety, stress
  • physical causes - decreased melatonin, medical conditions, pain, genetics, other sleep disorders

It can also be caused by an irregular lifestyle and sleeping habits. The body will vary from its normal rhythm but will often return to it when a normal schedule is adopted again.

Irregularities can result from:

  • hospitalization
  • pregnancy
  • night jobs and other shift work
  • jet lag
  • anything that prevents a full, uninterrupted period of sleep at night
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13y ago

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