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.
After World War Two, compulsory education remained as one of the priorities of the state. By 1978, only 1.2 percent of the Polish population was illiterate. In Poland, compulsory education ends at the age of 18. It usually starts when children are 6 years old and ends after 12 years of learning (usually in a high school). Contemporary Polish law distinguishes between compulsory school (obowiÄzek szkolny) and compulsory education (obowiÄzek nauki).