Light therapy in the showers helps adjust passengers’ body clocks at a new international lounge in Perth, reports Business Insider.

Peter Cistulli, the Charles Perkins Centre Professor of Sleep Medicine, is one of the team of scientists working with Qantas on how improve the health outcomes from long-distance travel. They’ve been looking at everything from nutrition to physical activity and sleep. As part of their research, frequent flyers on every plane are using wearables to gather data on rest, hydration and other physical responses during and after a flight.