Motion Sickness: Why It Happens, Who Is Most Affected, and How to Prevent It

Motion sickness — the nausea, vomiting, cold sweats, and dizziness that occur during travel — affects up to 30% of the population, with children aged 2–12 being the most susceptible. The pathophysiology is a sensory conflict: the vestibular system detects motion (the car is accelerating, braking, and turning), but the eyes — if fixed on a book or screen inside the vehicle — see a stationary environment. The brainstem receives contradictory signals, triggering the nausea and vomiting response, possibly as a protective mechanism to expel supposed toxins causing this neurological confusion.

Why Children Are More Affected

The vestibular-visual integration system matures through childhood — children process these conflicting sensory signals less efficiently than adults. Motion sickness peaks at 6–12 years and typically diminishes through adolescence. Genetic factors also play a role — motion sickness tends to run in families.

Prevention Strategies

Seating position: Front seat with eyes on the road ahead (synchronises visual and vestibular input). Middle back seat with eyes forward. Avoid reading or screens during travel — the biggest trigger. Gaze: Look at the distant horizon or road ahead; fix on a stable external reference point. Ventilation: Fresh air flow reduces nausea; avoid strong smells (petrol, food, perfume) inside the vehicle. Meal timing: Light meal 2–3 hours before travel; avoid heavy, fatty, or spicy food before a journey. Ginger: Ginger root (adrak) has good evidence for reducing nausea — ginger biscuits or ginger tea before travel. Accupressure (P6 point): The P6 (Nei-Kuan) pressure point on the inner wrist — 3 finger-widths below the wrist crease — when pressed with two fingers during travel, reduces nausea in some people. Sea-bands (acupressure wristbands) work on this principle.

Medications

Promethazine (Phenergan) — oral or suppository; effective but causes sedation. Cyclizine — less sedating. Scopolamine (hyoscine) transdermal patch — applied behind the ear 4 hours before travel; very effective for adults. Domperidone for acute nausea. Consult your doctor for children's dosing. Sri Anand CNC, Chanda Nagar, Hyderabad. Call +91 90633 66983.