A 13-year-old boy from Afghanistan's Kunduz travelled from Kabul to Delhi, hiding in the rear central landing gear compartment of Kam Air flight , surviving sub-zero temperatures and low oxygen for over two hours. He was only discovered after the plane landed in New Delhi. Many resort to this dangerous method of travelling illegally to another country, mostly in search of a better life. Data suggests most stowaways don't survive. But some do. So, how do stowaways survive temperatures of around -50 degrees Celsius at an altitude of 35,000 feet where oxygen is thin?

Not just low temperature and the altitude, the Afghan boy survived the unpressurised compartment and was miraculously unscathed. Passenger plane cockpits and cabins are pressurised because, at cruising altitudes of 30,000–40

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