We evolved as a species near the equator, and so we're very well-equipped to deal with 12 hours of daylight and 12 hours of darkness.
Mēs attīstījāmies kā sugas tuvu pie ekvatora, un tāpēc mēs esam ļoti labi pieraduši pie 12 stundām dienas gaismas un 12 stundām tumsas.