Power to the Salespeople What's the one thing that'll keep you going when you want to give up? Energy--and lots of it.

If you look at the common traits of successful salespeople, the most vital one is energy--the ability to go the extra mile and still have energy in reserve. Sure, some people succeed without tremendous amounts of energy, but countless others achieve sales success because of it. Energy is what gives you the stamina to not give up on a goal you've come so close to reaching.

Being at your best all the time requires constant energy. The following four factors will help you increase your energy level for peak performance and sales success.

1. Physical conditioning:Being in good physical shape has a huge impact on your ability to sell. It affects your attitude about what you do, what you're selling, how you feel about yourself and the way you approach new customers. Have you set aside at least 20 minutes every day to do some type of aerobic sport? At first it may seem like it takes time out of your day, but eventually you will realize how much more energy and drive you have to push yourself farther when you may have just packed it in for the day. Your physical shape is the foundation for your mental toughness.