Simplify the following text for a Grade 24 native English-speaking person.
Original: The Tibeto-Burman family of languages , often considered a branch of the Sino-Tibetan language family , consists of languages spoken in various central , east , south and southeast Asian countries , including Burma ( Myanmar ) , Tibet , northern Thailand , Vietnam , Laos , parts of southwest and central China ( Yunnan , Sichuan , Guizhou and Hunan ) , northern mountains and middle hills of Nepal , eastern parts of Bangladesh ( Chittagong Division ) , Bhutan , northern parts of Pakistan ( Baltistan ) , and various regions of India ( Himachal Pradesh , Uttarakhand , the Ladakh and Kargil regions of Jammu and Kashmir , and North-East India ) .
Simplified: The Tibeto-Burman family of languages ( often considered a sub-group of the Sino-Tibetan language family ) is spoken in various central and south Asian countries , including Myanmar ( Burma ) , Tibet , northern Thailand , Vietnam , Laos , parts of central China ( Guizhou , Hunan ) , northern parts of Nepal , north-eastern parts of Bangladesh , Bhutan , western Pakistan ( Baltistan ) , and various regions of India ( Himachal Pradesh , Uttarakhand , Sikkim , Arunachal Pradesh , Assam , Nagaland , Manipur , Mizoram , Tripura , and both the Ladakh and Kargil regions of Jammu and Kashmir ) .