Increasing temperatures are greatly raising the danger of dehydration, fainting and heat-related neurological problems, warn neurologists who are encouraging travellers to take extra care on summer excursions.
Long journeys in hot weather can be quite taxing on the brain and neurological system, especially if people are in crowded places, in direct sunshine, with insufficient ventilation and with irregular eating or sleeping. Even healthy people can suffer heat-related issues if they don’t take precautions, health experts warn.
One of the major complaints when on the road in the summer is dehydration. Dr Neha Pandita, Senior Consultant Neurologist and Unit Head, Clinical Lead – Parkinson’s Disease & Movement Disorders, Fortis Hospital, Noida, “Many travellers get dehydrated without knowing it because they are distracted, running from place to place or trying to avoid drinking too much water to cut down on bathroom stops.”
According to neurologists, dehydration can cause dizziness, disorientation, headaches and fainting spells by reducing blood circulation and the availability of oxygen to the brain. Mild dehydration can damage concentration, memory and coordination since the brain relies on fluids and electrolytes to function.
Tourists are encouraged to drink water frequently throughout the day rather than waiting until they are thirsty. Thirst is often a late indicator, and by the time it occurs, the body is already well on its way to dehydration. On long journeys, carry reusable water bottles, oral rehydration treatments and electrolyte-rich drinks. Watermelon and oranges, fruits rich in water, are likewise recommended for when you’re out and about.
It is also important to remember not to go out in the sun during the hottest hours of the afternoon. Travellers transiting through bus terminals, railway platforms, traffic-congested areas and outdoor tourist locations are typically exposed to prolonged periods of extreme heat. Dr Neha Pandita warns that the body can overheat quickly in extreme temperatures, which can impair the brain’s ability to regulate normal processes. This can result in heat exhaustion or heatstroke, which can induce confusion, disorientation, seizures, or brief loss of consciousness.
Wear loose, breathable clothing, hats, umbrellas, or sunglasses to help decrease heat absorption. Something as small as taking frequent stops in shaded or air-conditioned areas, especially on long car trips, can also help. For the elderly, children and people with migraine disorders, epilepsy, diabetes or blood pressure issues are regarded as particularly vulnerable to heat-related neurological consequences.
Skipping meals while travelling is another typical mistake associated with fainting and weakness. People who have busy travel schedules may often skip meals or have a lot of junk food and caffeinated drinks. Neurologists say low blood sugar and dehydration can have serious effects on brain function, causing blurred vision, lethargy, shaking and sudden blackouts. It is crucial to eat small, balanced meals at regular intervals so that energy levels remain steady and the brain is able to function properly.
Travellers should avoid excess intake of alcohol and caffeine during a holiday and long-distance trips. Both chemicals can lead to dehydration and may exacerbate heat-related symptoms. Lack of sleep on overnight trips may further aggravate mental weariness and diminish the brain’s ability to cope with heat stress.
Dr Neha Pandita says, “People should to seek emergency medical assistance if they develop symptoms including severe headache, nausea, confusion, slurred speech, rapid heartbeat or fainting when travelling.” Early intervention can help prevent significant neurological problems. As heatwaves become more common and intense, awareness and preventive care are key to safe summer travel and overall brain health.
