Explain jet lag and list its symptoms and ways to reduce its impact.

1.2.1 (b)
The flight from A to B crosses multiple time zones, which disrupts the body's natural circadian rhythm.

1.2.2 (a)
Five symptoms a tourist may experience after flight A-B are:

• Fatigue or extreme tiredness
• Difficulty sleeping (insomnia)
• Irritability or mood changes
• Difficulty concentrating or mental fogginess
• Headaches

1.2.2 (b)
Five ways to reduce the impact of these symptoms are:

• Gradually adjust your sleep schedule a few days before the flight to align with the destination's time zone.
• Stay well-hydrated by drinking plenty of water and avoiding excessive alcohol and caffeine during the flight.
• Adjust to the local time zone immediately upon arrival by eating meals and sleeping according to the new schedule.
• Seek natural light exposure during the day at your destination to help reset your body clock.
• Get some light exercise or walk around upon arrival to help alleviate stiffness and promote better sleep.