I never used stimulants over the last years to keep myself sensitive to dopamine and adrenaline(besides tyrosin), but today I used caffeine for the first time in years to get my rate coding up for a training phase and directly jumped 4inches higher and sprinted 3 tenths faster on 40yards than last week without caffeine. Besides that I really felt hyped and had energy.
I know I have very high serotonin levels, so I never eat carbs before workouts and thought thats enough, but it looks like the level is still too high for me to get into an activated state without the use of stimulants. Already start with plyos for better CNS activation.
Would love to hear your take on that