<< Chapter < Page | Chapter >> Page > |
Card 22 / 24:
stage 3 sleep
third stage of sleep; deep sleep characterized by low frequency, high amplitude delta waves
Previous Card | ← Previous Card Button |
Next Card | → Next Card Button |
Flip Card | ↑ / ↓ / Return / Space |
Notification Switch
Would you like to follow the 'Psychology' conversation and receive update notifications?