Being afraid of flying is one of the most common phobias.
In fact, it is believed that one in 10 of the population is affected by it, according to Anxiety UK.
Whether it's the turbulence, the landings, take-offs, claustrophobia, heights or bad weather, there are a number of things that can trigger the anxiety that comes with flying.
If this sounds like you, you'll be pleased to know a pilot has some advice to make the journey that bit easier.
Jerry Johnson, an airline pilot from Los Angeles, US, has revealed the worst time of the day to fly if you're a nervous traveller, reports Daily Star.
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He shared his flight secrets and top tips with Reader's Digest where he said there's a time of the day to avoid a bumpy ride.
Jerry revealed: "If you're a nervous flyer, book a morning flight.
"The heating of the ground later causes bumpier air, and it's much more likely to thunderstorm in the afternoon."
Another anonymous pilot also suggested that passengers should sit in the back if they always feel cold.
The cabin crew member, who works in Texas, said: "The general flow of air in any airplane is from front to back."
They added: "So if you're concerned about breathing the freshest possible air or not getting too hot, sit as close to the front.
"Planes are generally warmest in the back."
For a smooth ride, sit over or near the wing pilot Patrick Smith says.
"The bumpiest place is in the back. A plane is like a seesaw. If you're in the middle, you don't move as much," he revealed.
He also reassured readers that turbulence isn't dangerous and that it's "impossible" for it to cause the plane to crash.
Patrick added: "Pilots find it perplexing that so many people are afraid of turbulence.
"It's all but impossible for turbulence to cause a crash.
"We avoid turbulence not because we're afraid the wing is going to fall off but because it's annoying."
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