This is what happens to your body during a flight 

Stamatis Dragoumanos is a Software Engineer and Developer with specialization on Human-Computer Interaction in Virtual and Augmented Environments with almost 15 years of experience. He has a deep knowledge on programming languages, 3D graphics design and development, game development and web application. He is also a Chemical Engineer and has MSc in Computational Fluid Dynamics. He has a 12 year experience on teaching programming languages, algorithms and data structures on a variety of student ages and education level. Eight years of experience out of 12 are in pre-university students as an Educator in private primary schools and public high schools. He is certified Soft Skill Trainer by Erasmus+ and certified Professional Scrum Master I by scrum.org. He is an inquiry based learning enthusiast and he strongly believes that soft skills development is one of the most important concepts that is missing in today’s Educational System. He has participated in the forming and first steps of 4 startups and he is awarded by the Athens Chamber of Commerce and Industry for one of them. His reasearch interests are on Human Computer Interaction, Augmented Reality, and Education. He is currently the Chair of IEEE Region 8 Professional and Educational Activities Subcommittee and Co-founder and Editor of IEEE Region 8 Today.