For me, it's sleep hands down. I have sleep apnea so it's not the quantity of sleep that's the issue, it's the quality.
Sleep. I can my workouts are fine if I reduce calories, but if I add stimulants to my cut and they interrupt my sleep I am F-ed
I couldnt imagine taking any stimulants in a deficit....id probably go stir crazy in a matter of minutes
Where is this going if a winner prevailed ?
hopefully not an excuse to not go to the gym
or something to sniffle about while youre lifting