There's a secret room on planes -- which airlines don't want you to know about

Flight attendants are always on their feet, serving passengers with a smile despite the long hours and numerous complaints or requests coming their way.

They are also trained in first aid, security measures, hostage situations and so on, making their jobs even more challenging.

But do you know how they remain so efficient while still looking so radiant?

According to Lifebuzz, flight attendants have a room all to themselves on board a plane, where they can relax and take a break from serving passengers.

These are some behind-the-scenes shots to remind you of how hard they work and how we should all be grateful for their services.