Constantly powering an arduino nano

Hey everyone. I am working on a project with a nano and i was wondering if i could leave the board constantly powered by a usb cable. I wouldnt be powering anything else with the board just leaving the board plugged in constantly. Is that safe? And or will i burn out the board?

Safe.

Yes its safe, I have a system controlled by Nano which is running 24/7 for almost a year now. Never switched off till now.

Should be safe. Did it before.

Awesome. Simple enough. Thanks everyone for their feedback!