(HealthDay News) -- If you spend most days trying to keep your eyes open, you may have a deeper problem than ordinary lack of sleep.
The National Sleep Foundation mentions these possible causes of excessive sleepiness:
- Self-imposed sleep deprivation.
- Performing shift work, causing you to sleep during the day and work at night.
- Sleep disorders, such as sleep apnea.
- Other disorders, such as insomnia, narcolepsy or restless leg syndrome.
- Certain medications.
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