Hi, I don't know if I'm doing something or if it's a bug but two of my slaves are not regaining their energy. 

Also it seems that even if I lower their stress it goes back up the next day at the exact same amount.

It's pretty annoying since I need them for fighting.

Edit : It seems their goes up and down randomly even if their at rest

fighting and walking outside decreases energy, Endurance (or was it strength?) and high level will make them last more. 

if you just started, resting outside using 3 suplies and 5 food for each member will make energy bar full.

I usually deal with it using the invigorate spell, after getting past 10 Magic Affinity it will restore 50% energy (for each use) AND will lower stress.