Flight Anxiety & Jetlag _______________________________________________________________________________________________________    Flight Anxiety and Jetlag • • •                   30% of the population suffer from Flight Anxiety.          Flight Anxiety is learned.          100% of the population suffer from Jet-lag. Jet-lag is caused by difficulties of the body internal clock to adjust to the new rythm. Development has not (yet) provided our Circadian Rythm with the ability of quick adaptation.