About Moira - Is Moira's device actually killing her?

She created the device on her back to absorb health from her foes and heal her allies, but when I look at most skins you can see her hand that absorb almost like decayed and dead. Is the machine on her back actually keeping her alive or is it slowly killing her? I’ve always wondered that, what if one of the tubes like the healing got disconnected? Does that mean her system gets overflown with the Absorb fluid and kill her or…?

I’m just curious about this.

That was the result of self experimentation from around a decade ago. You can see her do it to herself in her Origin Short.