If you need a quick boost before your workout and you’ve sworn off caffeine, try the cold-splash method.
As reported in the August ’11 Prevention, researchers at the University of Chicago found that folks exposed to ice water performed better on standard alertness tests.
The cold appears to cause a release of noradrenaline, an energizing hormone. Before you hit your first set, try splashing your face with cold water. Best to do that in the restroom, not the gym water fountain.