Most Americans start their day with a cup of coffee and rely on an energy drink to get them through the rest of the work day, or that last hurdle of getting to the gym.
“What many people don’t realize is it's not a lack of sugar that makes us tired during the day—it's the fact that we're already consuming too much. Sugary foods and drinks cause blood sugar to spike, and you feel energized. To compensate, your body releases insulin, which quickly lowers blood sugar levels, causing you to "crash" and feel tired. If you indulge your sweet tooth throughout the day, your blood sugar yo-yos all day long. Having that late afternoon/early evening energy drink pulls you out of your post lunch “crash” and gives you the energy to get through the day or to the gym. “