Cumbia dancers at Barranquilla Carnaval in Colombia. Barranquilla's Carnival is Colombia's most important folklore celebration, one of the biggest carnivals in the world. The carnival has traditions that date back to the century.
Human life, just like all life on earth, depends on appropriate pH levels in and around living organisms and cells. For us, a tightly controlled pH level in the serum of about _ that_s a slightly alkaline range _ is needed in order to ensure survival.