Finish your training. Then wait 20 minutes before you eat.

Just drink water with electrolytes. Use this time to focus on a difficult task.

This short fasted state can boost ketones and BDNF. It helps sharpen your mind and reaction time.

You'll likely notice a difference in focus and mental speed within about five minutes.

Only do this on low intensity days. Skip it if you're already feeling drained. (1/2)