Preventing travel sickness, also known as motion sickness, involves minimizing the conflicting sensory inputs that lead to its symptoms. Here are some effective ways to prevent travel sickness:

1. Choose the Right Seat: If possible, sit in a location where you can see the horizon and face the direction of travel. In a car, sit in the front seat, and in an airplane, try to sit over the wings. These positions provide a more stable visual reference, reducing the chances of motion sickness.
2. Focus on a Fixed Point: During travel, focus on a fixed point outside, such as the horizon or a distant landmark. Avoid staring at moving objects or reading, as this can increase sensory conflict.
3. Fresh Air and Ventilation: Ensure proper ventilation and fresh air flow during travel. Being in stuffy or poorly ventilated environments can worsen motion sickness.
4. Avoid Heavy Meals: Avoid heavy, greasy, or spicy meals before and during travel, as they can contribute to motion sickness.
5. Stay Hydrated: Drink plenty of water before and during your journey to stay hydrated, as dehydration can worsen motion sickness.
6. Ginger: Ginger has shown promise in reducing motion sickness symptoms. Consider consuming ginger in various forms, such as ginger candies, ginger tea, ginger capsules, or ginger cookies.
7. Acupressure Wristbands: Some individuals find relief from motion sickness by using acupressure wristbands that apply pressure to specific points on the wrist.
8. Distraction and Relaxation Techniques: Distract yourself with conversation, music, or audiobooks during travel. Practicing relaxation techniques, such as deep breathing or mindfulness, may also help reduce anxiety related to motion sickness.
9. Medications: Over-the-counter or prescription medications such as dimenhydrinate (Dramamine), meclizine (Bonine), and scopolamine patches can be effective in preventing or reducing motion sickness symptoms. However, they may cause drowsiness, so use them with caution, especially if you need to remain alert during travel.
10. Avoid Conflicting Sensory Inputs: Try to minimize situations that cause conflicting sensory inputs, such as reading while in a moving vehicle or looking at a phone or tablet screen for an extended period during travel.
11. Choose Smooth Routes: If possible, opt for smoother routes during travel. For example, on a boat, sit in the middle where the motion is less pronounced.
12. Preparation for Sea Travel: If you know you are prone to motion sickness and are planning a sea journey, consider consulting a doctor about taking anti-motion sickness medication before the trip.

Remember that individual responses to prevention methods can vary, so you may need to try different approaches to find what works best for you. If you frequently experience motion sickness or if it significantly impacts your ability to travel comfortably, consider consulting a healthcare professional for personalized advice and recommendations.