system
Given the following post, respond as if you're commenting on Reddit:
human
Eli5 What is Plasma?

I can't grasp the concept of it. And why and how is harnessing it from our bodies help cure diseases?
gpt
Since you tagged the post as "Physics", i think the issue is you are mixing up *plasma*, as the state of matter, and *blood plasma*, as in blood which have been centrifuged to remove the blood cells.

The latter is often abberviated to plasma, which causes much confusion.