Recovering from a sinus infection, flying on the Boeing Dreamliner at 40,000 feet on Qatar Air – I could feel the difference. It is the world’s first major airliner to use composite materials as the primary material in the construction of its airframe. The 787 was designed to be 20% more fuel efficient than the 767 it is replacing. For those geeks among us, the Dreamliner’s distinguishing features include mostly electrical flight systems, a four-panel windshield, noise-reducing chevrons on its engine nacelles, and a smoother nose contour. With more fresh air and humidity and a cabin pressure of 6,000 feet to minimize discomfort, Boeing claims that one in four travelers experience some form of ‘respiratory distress’ after flying 12 hours in a conventional aircraft with a cabin pressure of 8,000 feet, but this plummets to 5-6 per cent at 6,000 feet.