Asia is the largest continent by population, housing over 4.6 billion individuals, which is more than half of the world's total population. This immense demographic diversity includes various countries, cultures, and ethnicities. China's and India's populations alone account for a significant portion of the total populace, with both nations exceeding a billion residents. The continent's vast expanse covers diverse environments, ranging from deserts to rainforests, further contributing to cultural variety and economic activities.