When embarking on a lengthy journey, you shouldn't just consider which items to place in your luggage. For your wellbeing, you should also be conscious about the clothing you're wearing.

Remaining in a cramped space for hours isn't merely uncomfortable, it can be detrimental to your health. In severe instances, lack of movement can result in clots that impede blood circulation.

This can trigger life-threatening emergencies such as stroke and heart attack, so it's essential to reduce risks wherever feasible. So, offering crucial information on the subject, Dr José Manuel Felices shared his guidance on TikTok.

The medical expert stated: "Blood clots are life-threatening and increasingly common, even in young people. What you may not know is that they can be prevented.

"Blood clots form when blood flow stagnates and eventually coagulates. The legs are the key point, as the returning blood has to overcome gravity, for which the pumping action of our heart is crucial... That is why they are so common on long journeys, when we spend a lot of time sitting down."

The specialist advises taking the following three precautions - and also had a clothing suggestion to offer. Here are three tips you should follow to reduce risk:

1. Walk before travelling

Physical activity like walking helps maintain your blood flowing smoothly through your legs. This diminishes the likelihood of blood pooling and clotting, which can occur when you're sedentary for extended periods.

Spending a minimum of twenty minutes on your feet during the hour prior to flight or train departure helps stimulate blood flow and prepares your body for the extended period of immobility ahead.

Rather than settling into a seat before boarding, try perusing the retail outlets or strolling around your departure gate.

2. Do exercises

Stretch your legs by moving about the cabin whenever it's safe to do so. Alternatively, perform some exercises to stimulate circulation.

The doctor recommended: "Every hour, choose one of these two options: either heel raises, which you can do in your own seat, or get up and do some squats."

3. Think about your outfit

Steer clear of restrictive garments that can impede blood circulation in your lower limbs. Beneath loose-fitting layers, you should also consider wearing compression stockings.

These help to encourage blood flow in your legs, while also helping to prevent inflammaton. Should you experience symptoms including swelling, discomfort, redness, or heat in your legs following a flight, seek medical attention immediately.

You should also speak with your healthcare provider for tailored guidance, particularly if you have pre-existing health conditions.