GP and Melbourne University lecturer Dr Nick Carr suggests anyone travelling for more than 4 hours on a plane avoid alcohol because it may increase their risk of Deep Vein Thrombosis (DVT).

This is when a blood clot forms in the leg and can cause pain and swelling. DVT is potentially deadly.

DVT isn’t only a risk to people travelling by air, even if you’re taking a long bus or train ride, or travelling by car, you may be at risk.

In fact whenever you’re sitting still, not moving with your legs dangling down, you’re at a greater risk, Dr Carr said.

He advises not to take sleeping tablets or drink alcohol as this may increase your risk.

Dehydration is another cause, so make sure you drink plenty of water when travelling.

Read more at http://www.abc.net.au/news/2017-06-30/tips-on-how-to-avoid-deep-vein-thrombosis-dvt/8659504