Being energetic at work is more than avoiding the sluggish feeling after lunch. When you're energetic, you possess and exhibit energy in abundance that's an obvious part of a vigorous work style and temperament. Employers value energetic employees for a key reason -- their energy is contagious as they engage, create, and participate effectively with teams. You don't have to undergo a personality transformation to be more energetic.

1) Start with regular exercise and stress management…