Why motion sickness happens and how to find relief

Motion sickness is one of those bodily quirks most Aussies have felt at some point. Whether bracing through a wobbly Spirit of Tasmania crossing, navigating a twisting run down the Great Ocean Road, or staring at endless highway somewhere between Geelong and Warrnambool, plenty of travellers find their eyes and inner ears cannot agree on what is happening. The condition can turn a much-anticipated holiday into a queasy endurance test. Understanding why it happens, and what genuinely eases it, makes travel far more enjoyable.

The good news is that motion sickness is well-studied and manageable for most people. From simple positioning tricks to over-the-counter remedies, the options range from free to inexpensive, and from behavioural to pharmacological. Below is a practical look at why the body rebels against certain movements, who is most at risk, and the strategies that consistently help.

The sensory mix-up at the heart of motion sickness

Motion sickness begins in the brain rather than the stomach. The trigger comes when the signals arriving from the eyes, the inner ear, and the body's proprioceptive sensors disagree. On a ship, the inner ear detects the rolling motion, but the eyes, fixed on a still cabin interior, send the message that nothing is moving. That conflict is interpreted by the brain as a possible sign of poisoning, since similar confusion occurs when the body ingests toxins. The brain responds by triggering nausea, sweating, and sometimes vomiting to clear what it thinks might be a harmful substance.

This is why drivers rarely feel sick in their own vehicles: their eyes and inner ears agree on the motion. Passengers, however, especially those staring at phones or books, are prime candidates for sensory conflict. Studies coordinated through Australian vestibular research groups confirm that the more mismatched the sensory inputs become, the stronger the symptoms tend to be.

Common triggers beyond the family road trip

While car travel takes most of the blame, motion sickness can strike anywhere movement feels unusual. Ferry rides across Bass Strait are notorious, particularly during rough weather, because the pitch and roll of the vessel combine with a confined cabin environment. Flights, especially during turbulence, can produce symptoms in people who have never felt sick in a car. Even virtual reality headsets can bring on the same effects, since the eyes register movement while the body stays still.

Other frequently reported triggers include amusement park rides, particularly large spinning attractions at theme parks on the Gold Coast, and reading in moving vehicles. Even the gentle sway of a tall building in strong wind has been linked to mild episodes. Recognising the personal pattern of triggers is often the first step toward managing the problem.

Why some travellers cope better than others

Age plays a clear role, with children aged two to twelve being the most vulnerable. Most people outgrow severe motion sickness in their teenage years, though women tend to report it more than men, partly due to hormonal fluctuations during pregnancy or the menstrual cycle. Genetics also matter, which is why some families seem cursed with terrible sea legs while others shrug off the roughest crossing.

Inner ear disorders, migraines, and certain medications can increase susceptibility. A relatively new contributor is screen reliance during travel. Heavy use of phones and tablets in cars has been linked in Australian paediatric surveys to higher rates of car sickness in young children, who are still developing their vestibular systems. Knowing your own baseline sensitivity helps with planning, particularly for long outback trips or flights across the Tasman.

Habits and positioning that calm symptoms

The simplest interventions are free and surprisingly effective. Looking at the horizon, or fixing the gaze on a stable point ahead, gives the eyes information that agrees with what the inner ear is sensing. Sitting in the front seat of a car helps, as does choosing a window seat over the wing on a flight, or a midship cabin on a ferry. Fresh air, especially a cool breeze on the face, often reduces the dizzy sensation.

Drivers, who must keep their eyes on the road, almost never feel motion sick in their own vehicles. In Australia, learners on P-plates sometimes report the opposite, feeling highly susceptible because their eyes dart between mirrors and the road, creating momentary sensory confusion. For passengers, closing the eyes, sleeping through the journey, or avoiding screens during travel can all reduce the risk considerably. Breaks every hour or so on long drives from Sydney to Perth are useful, since stepping out resets the sensory system.

Food, drink, and natural remedies that work

What someone consumes before and during travel matters more than most people realise. Heavy, greasy, or strongly spiced meals overload the digestive system and can worsen symptoms. Light snacks such as plain crackers, dry toast, or a banana are kinder to the stomach. Sipping cold water steadily, rather than drinking large amounts at once, helps with hydration without overwhelming the gut.

Ginger has the strongest evidence among natural remedies. Studies suggest that ginger capsules or crystallised ginger taken thirty minutes before travel can reduce nausea in many people. Peppermint tea or lozenges work for some, and acupressure wristbands, sold widely at chemists across Australia, provide modest relief for a portion of users. Some travellers keep small flavour drops like ginger or chilli infusions in their bag, finding the taste settles the stomach during slow stretches of road, though these work quite differently from medicinal options.

Helpful medications and medical treatments

When behavioural and natural approaches fall short, several over-the-counter medicines are available at Australian pharmacies. Antihistamines such as hyoscine and dimenhydrinate are the most common and are most effective when taken thirty to sixty minutes before travel. They work by dampening the signals from the inner ear to the brain, but they can cause drowsiness, so they are best reserved for travel rather than regular use.

For people who travel frequently or work in aviation or on cruise ships, prescription options exist. Scopolamine patches, applied behind the ear several hours before travel, deliver medication steadily over up to three days and are particularly useful for long-haul cruises. Anyone with persistent symptoms despite using these measures should see a doctor, as severe motion sickness can occasionally mask or relate to inner ear conditions worth investigating. A practical overview of travel wellbeing is available through our practical resource for readers wanting a broader starting point.

Quick checklist before you head out

A small amount of preparation goes a long way toward preventing a miserable journey. The following steps cover the most reliable strategies in one place.

• Eat lightly, choosing plain, low-fat foods such as toast, rice, or bananas in the hours before travel.
• Choose a seat with the steadiest motion: front seat in a car, over the wings on a plane, or midship on a ferry.
• Fix the gaze on the horizon or close the eyes entirely, avoiding screens and reading.
• Carry water, ginger chews, or peppermint lozenges as a backup when nausea creeps in.
• Take preventative medication thirty to sixty minutes before departure if symptoms have been severe in the past.

For travellers heading to sunny destinations, pairing nausea prevention with smart skin protection is also worth thinking about. The team behind this site has put together a practical sunscreen guide on choosing a product that actually holds up in Australian conditions.

Motion sickness does not need to dictate where or how far someone travels. With a few small habits and the right backup options packed before departure, that next trip across Bass Strait, down the coast, or out to the red centre can be enjoyed rather than endured. Pick a smart seat, pack a simple nausea kit, and book the trip with confidence.