Caffeine and Workout Performance: What's Actually Supported

Caffeine before training genuinely supports alertness and perceived effort for many people — it's one of the more well-supported performance aids available, and also one of the easiest to take too much of.

Timing matters more than most members realize

Taken too close to bedtime, even an afternoon dose can disrupt the sleep that recovery actually depends on — undoing more than the workout benefit provided.

Tolerance builds, and that's worth knowing

Regular daily caffeine users often get a smaller performance boost from a pre-workout dose than an infrequent user would — worth setting realistic expectations around.