Most trekking routes are located on the mountains, whose altitudes are between 2000 meters and 4800 meters. The suggestions for trekking on plateau area include:
Walk slowly. Absolutely can’t run!
Drink enough water
Keep warm and avoid getting burnt and catching a cold
Your pack list should include comfortable mountaineering boots and socks, sunbonnets, sunglasses, thick coats and thermals and alpenstocks