If you have ever paid close attention before a flight takes off, you may have noticed something unusual.

While passengers are settling into their seats, flight attendants often sit upright with their hands tucked under their thighs.

At first glance, this specific posture may look somewhat uncomfortable or even strange to the average passenger.

However, according to aviation professionals, there is a very important safety reason behind this habit.

During takeoff and landing, flight attendants are required to sit in a special posture known as the brace position.

These two distinct phases of a flight are considered critical, as this is when the majority of aviation incidents occur.

By sitting upright with their backs flat against the seat, cabin crew can better protect themselves in an emergency.

The main purpose of tucking their hands is simple: to prevent the arms from flailing around during a sudden impact.

Securing the hands beneath the thighs reduces arm injuries, keeps the body stable, and prevents involuntary movements.

This disciplined position ensures crew members remain alert and can react much more quickly if something goes wrong.