Drowsiness refers to feeling abnormally sleepy during the day. People who are drowsy may fall asleep in inappropriate situations or at inappropriate times.
Sleepiness - during the day; Hypersomnia; Somnolence
Excessive daytime sleepiness (without a known cause) suggests that you have a significant sleep disorder. It is different from
fatigue. Depression, anxiety, stress, and boredom can all contribute to excessive sleepiness, but these conditions more typically cause fatigue and apathy.
- Having to work long hours or different shifts (nights, weekends)
- Medications (tranquilizers, sleeping pills, antihistamines)
- Medical conditions (such as
hypothyroidism, hypercalcemia, and hyponatremia/hypernatremia)
- Not sleeping for long enough
- Sleep disorders (such as
sleep apneasyndrome and narcolepsy)