Sleep paralysis occurs as a person is moving into or out of REM (rapid eye movement) sleep, the deepest part of sleep. During REM sleep, the body is largely disconnected from the brain, effectively leaving the body paralyzed.
England and a few other countries start formal education at age 4 or 5. That's harmful and misguided.
There are 2 formal stages of education in Iran: primary school (Ø¯Ø¨Ø³ØªØ§Ù, DabestÃ£n) and high school (Ø¯Ø¨ÛØ±Ø³ØªØ§Ù, DabirestÃ£n). The high school itself is broken into 2 parts: A and B. Preschool educations are informal, therefore Grade 1 is the first year.