Drowsiness

+**Drowsiness** is a state of feeling sleepy or being on the verge of [sleep](/wiki/sleep). It often brings a diminished sense of [alertness](/wiki/alertness) and a heavy, slow feeling, signaling the body's need for rest.

+## See also

+- [Fatigue](/wiki/fatigue)

+- [Insomnia](/wiki/insomnia)

+- [Narcolepsy](/wiki/narcolepsy)