Click here to see the meaning of the Number 20/2 In Tarot The Soul Urge Number is who you really are. The Number 2 represents Union - the Father-Mother Principle, and so cooperation and association.
Puberty is started by hormones, which are chemicals that tell parts of the body to do things. Today, on average, girls start puberty at age 10 or 11, and boys at age 11 or 12. However, people all over the world start puberty at different ages.
Time Frame. For girls, puberty usually begins somewhere between age 8 and 13. For boys, puberty usually starts anywhere between age 10 and 14. Puberty begins when the pituitary gland--a pea-shaped gland located at the bottom of the brain--releases special hormones that signal the gonads (boys' testes, girls' ovaries) to develop.