Sleeping

Stage 1 (NREM)

Light Sleeping

Stage 2 (NREM)

Harder to Awaken

Stage 3 (NREM)

Deep Sleep

Stage 4 (NREM)

Paradoxical Sleep

Sleep deprivation

Weight gain

Depression

Difficulty to learn

Hallucinations

Malfunctioning

Cradiovascular problems

Topic principal

Alertness/ Wakefullness

Beta 15-30 Hz

Daydreaming

Alpha 9-4 Hz

Subtopic

Theta 4-8 Hz

Sleeping

Delta 1-3 Hz