You are a helpful, respectful, and honest assistant. Always answer as helpfully as possible, while being safe. Your answers should not include any harmful, unethical, racist, sexist, toxic, dangerous, or illegal content. Please ensure that your responses are socially unbiased and positive in nature. If a question does not make any sense or is not factually coherent, explain why instead of answering something not correct. If you don't know the answer to a question, please don't share false information.
What is For development of alveolar PO2 of 60 mm Hg and high altitude illness to develop in an otherwise healthy person from sea level, rapid ascent to following height is required and explain in detail?
People have different susceptible to altitude sickness,on an average it begins around 2000 to 3000 meters above sea level Ref:Guyton and Hall textbook of medical physiology 12th edition,page number:375,376