While having a glass of wine or a vodka soda is common on flights, some travel experts now warn against it, as it may cause issues both during the journey and upon arrival.

A recent study by the Institute of Aerospace Medicine found that the body absorbs alcohol more quickly, speeding up the intoxicating effect.

Combined with the altitude of being on a flight, consuming alcohol can strain the heart and lungs, and cause symptoms like chest pain, shortness of breath, or severe dizziness.

With one in ten Brits confessing to getting drunk on a flight, travel expert Jamie Fraser for US summer camp Wild Packs explained why drinking in the air can be dangerous.

He said: “Having a drink on a flight might seem like a good way to unwind, but it carries certain risks including health issues.

“Being aware of these effects and taking sensible precautions can help passengers have a safer and more comfortable journey.”

He added that you’re more likely to become dehydrated while drinking alcohol during your flight. He said: “The air inside the plane has very low humidity, around 10%, which can quickly lead to dehydration, causing dizziness, headaches, and fatigue.”

During flights, people also typically drink less water than they would normally, so adding alcohol into the mix leads to an increased risk of dehydration.

The dehydration that comes along with drinking too much alcohol combined with sitting down for a long stretch of time during a flight increases the risk of blood clots and deep vein thrombosis – especially if the alcohol interacts with any food or medication you consume during this time.

Jamie further highlights that drinking can put strain on your heart, as he explained: “Alcohol can weaken heart muscles and raise blood pressure, increasing the risk of heart disease. When combined with the effects of cabin pressure and long-haul travel, drinking before falling asleep on a flight can put additional strain on the heart.

“Studies have shown that this can reduce blood oxygen levels and increase heart rate. This not only disrupts deep sleep but makes those with preexisting heart conditions more vulnerable to heart disease.”

How to minimise the risks from drinking when flying

• Drink responsibly – Avoid excessive drinking and be aware that alcohol can have a stronger effect at high altitudes.
• Drink plenty of water before and during your flight – and pair each alcoholic drink with a glass of water.
• Eat before drinking any alcohol.
• Know your limits and pace yourself accordingly.
• Respect the cabin crew – If they say you’ve had enough to drink, then follow their advice.
• Wait till you arrive at your destination to enjoy an alcoholic drink rather than drinking on the plane.
• Skip drinks if you are planning on sleeping, as alcohol can disrupt sleep.