This compelling image captures an elderly woman seated in an aeroplane, clearly fatigued and being assisted by a companion. Her visible yawning and discomfort illustrate classic symptoms associated with jet lag, including sleep disruption, daytime fatigue, and cognitive confusion. Diagnosing jet lag is typically based on a patient’s travel history, especially across multiple time zones, and the persistence of sleep-related issues that are not attributable to other health conditions. Medical professionals may also explore behavioural patterns and circadian rhythm disruptions to rule out other sleep disorders. This image effectively visualises the diagnostic context of jet lag for both travellers and healthcare practitioners.