Yawns can be caused by boredom. When watching an uninteresting performance, movie, or recital a person may have a bout of excessive yawning. To suppress the yawns, he can hold his mouth closed tightly and clench his jaws. When the yawn comes on he must keep the pressure in the rear of his jaws and swallow the yawn. Excessive yawning, caused by sleepiness, can be counteracted by drinking lots of water. Dehydration is a big cause of fatigue. When a person drinks a lot of water, the yawning will cease. Every time the urge to yawn is strong, drink a big gulp of water and the yawn will pass.
According to the Jet Airliner Crash Data Evaluation Center, JetBlue ranks as the safest U.S.-based air carrier, as of publication. Southwest, Delta, United and American Airlines round out the top five in U.S. safety ratings.
Its domestic and regional subsidiary, UNI Air, operates a medium and short-haul network to destinations in Taiwan, Macau and China with its main hub in Kaohsiung, Taiwan. As of January 2015, EVA Air is the 3rd safest airline in the world, with no hull losses, accidents, or fatalities since its establishment.he name EVA was taken from two letters of Evergreen and the first letter of Airways.. The name EVA is always spelled in capital letters. The airline uses the logo of its parent company, using green with an orange trim.