Pre workout supplements are formulas that you can consume before engaging in prolonged periods of physical exercise. They have been designed to make your workouts more effective by boosting your energy levels and improving the overall physical performance. Usually, you can find pre workouts in the form of powdered substances that can be mixed with either milk or water right before going into your exercise regimen.
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Identify the author's academic background and areas of research, if possible. If your source is a book, look for an author's note, a foreword, or an “about the author” section towards the beginning or the end of the book. If your source is a website, look for an “About Me” section""