South Asia , or Southern Asia , is the southern region of the Asian continent , which comprises the sub-Himalayan SAARC countries and, for some authorities , adjoining countries to the west and east. Topographically, it is dominated by the Indian Plate , which rises above sea level as Nepal and northern parts of India situated south of the Himalayas and the Hindu Kush. South Asia covers about 5. It alone accounted for It also has the largest population of Muslims in the Asia-Pacific region which forms one third global Muslim population   as well as over 35 million Christians and 25 million Buddhists.
South Asia will continue to have an overwhelmingly young population for many years to come. However, concerns will persist about the skills of the workforce, owing to poor educational standards in many parts of the region. Much of the discussion about demographics in Asia centres on demographic ageing in the region. However, this picture is incomplete, as ageing is not a pressing concern in some parts of Asia. In fact, some Asian countries remain overwhelmingly young. Therefore, the working-age population South Asian countries is expected to continue rising.
By , South Asia will likely host around 2. A challenge facing the region will be ensuring populations grow at a sustainable rate. Population growth can equal economic growth, but only if both are managed appropriately. For countries to achieve economically sustainable population growth they must introduce social policies that reduce birth rates and reduce infant mortality; small families must be encouraged over large ones and parenting should commence later. Culturally, South Asians still aim to produce relatively large families; a crude form of insurance against high child mortality.
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