Pies: Puppies can sleep 18 to 20 hours a day during that rapid body growth phase

Evidence: 36 • authority: 80

Evidence: 27 • authority: 88

Evidence: 27 • authority: 80

Evidence: 27 • authority: 80

Evidence: 27 • authority: 80

Evidence: 27 • authority: 88

Evidence: 27 • authority: 72

Adolescence (from Latin adolescere 'to mature') is a transitional stage of human physical and psychological development that generally occurs during the period from puberty to adulthood (typically corresponding to the age of majority). Adolescence is usually associated with the teenage years, but its physical, psychological or cultural expressions may begin earlier or end later. Puberty typically begins during preadolescence, particularly in females. Physical growth (particularly in males) and cognitive development can extend past the teens. Age provides only a rough marker of adolescence, and scholars have not agreed upon a precise definition. Some definitions start as early as 10 and end…

Evidence: — • authority: 38