Sooo... what does hypostasis from PK's Rebalancing do?

One of the mutations I recently got was thenegative trait “Hypostasis” which I noticed you can grab at character creation as well. I have yet to figure out what it actually does, as I have not noticed any negative effects yet.

The description reads:
“Your body continuously struggles to keep up with your phisiology. You often feel less than perfect; and in need of remedy.”

It should make you tire quicker as well as reduce your healing rate and stamina regeneration.