Full description and OG mod can be found here.

What it does basically is add some quite useful stims in game which can be bought from Therapist. Been using this mod since it's inception and thought to share my version that I use since 3.3 onwards.

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Training Stim 1 = Stamina Rate +3 and Weight Limit 0.27 (+27%)

Training Stim 2 = +25 Recoil Control

Training Stim 3 = Endurance +20 and Strength +20

Training Stim 4 = DamageModifier -0.5 (50% less dmg taken) and Health Rate +2

Training Stim 5 = Endurance +40, Strength +40, Recoil Control +40

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Full credits goes to Echo55. I'm just someone who enabled mod compatibility with 3.8 (not tested with 3.8.1 though but it should work).