Paying attention to what you eat and how you live will help reverse that rundown feeling.
Fluctuating blood sugar, typically caused by caffeine and sugar, zaps energy. For a better, more long-lasting boost, eat a snack of protein and a complex carbohydrate, such as almond butter on whole-grain crackers.
Courage can be invigorating, says Cheryl Richardson, author of Stand Up for Life. Be the first one on the dance floor or voice your opinions at a meeting.
Lack of direction or focus drains your energy, says Jon Gordon, author of The Energy Bus. Create a road map for reaching goals by writing down your starting point, possible roadblocks and your ideal destination.