The human brain lacks a sleep regulating structure.
The 1922 census of Palestine was the first census carried out by the authorities of the British Mandate of Palestine , on 23 October 1922 .. census. census. British Mandate of Palestine. British Mandate of Palestine. The reported population was 757,182 , including the military and persons of foreign nationality .. The division into religious groups was 590,390 Muslims , 83,694 Jews , 73,024 Christians , 7,028 Druze , 408 Sikhs , 265 Bahais , 156 Metawalis , and 163 Samaritans .. Muslims. Muslims. Jews. Jews. Christians. Christians. Druze. Druze. Sikhs. Sikhs. Samaritans. Samaritans