ESP boards: protection against ESD? (static electricity)

Hey, not sure if this should go into ESPhome, but as it’s purely hardware-related topic: do ESP boards have something like a protection against ESD? I yesterday worked with my co2 sensor board while it wasn’t connected, and when I then connected it, I didn’t get it to work. I then removed all sensors from the connectors on the PCB, waited a bit, just connected the ESP and it booted. Then powered it down again, added the sensors again and then it worked like normal. Therefore I was wondering: do ESP boards have a fallback for such a case?