Glossary
Jet Lag
Definition: Jet lag is a temporary sleep disorder caused by rapid travel across multiple time zones, resulting in fatigue, insomnia, difficulty concentrating, and digestive issues as your body’s circadian rhythm adjusts to the new time zone.
Jet lag occurs because your body’s internal clock (circadian rhythm) is still synchronised with your departure time zone. Symptoms are worse when flying east (where you "lose" time) than when flying west, and generally take one day per time zone crossed to fully recover.
Common jet lag symptoms include: daytime fatigue, difficulty sleeping at night, impaired concentration, irritability, digestive problems, and general malaise. For business travellers who need to perform immediately upon arrival, jet lag can significantly impact productivity.
Business class significantly mitigates jet lag’s impact. Lie-flat seats allow proper sleep during overnight flights, arriving rested rather than exhausted. Modern aircraft like the 787 Dreamliner and A350 further help with higher cabin pressure and humidity. Some airlines offer jet lag management advice, and premium cabin meals are often designed to support natural sleep cycles. BookMyBusinessClass prioritises getting clients into lie-flat business class for exactly this reason.