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.
1 Primary education is free and secular, and is compulsory for children of 6 to 14 years.  Recruiting and Strength.EJniversal compulsory service was adopted after the disasters of 1870-1871, though in principle it had been established by Marshal Niels reforms a few years before that date.