Stress affects people in different ways. Some of us experience headaches or physical pain. Others lose concentration and focus. When that happens, if you want to accomplish anything at all, you've got to do something to relieve the stress. Here are some suggestions.

- Laugh

That's not as silly as it sounds. Medical research has shown that laughter decreases blood pressure and heart rate, increases oxygen in the blood, creates an enzyme that protects your stomach from stress, and strengthens the immune system. According to a study, the average American child laughs out loud about 400 times per day. The average American adult laughs out loud only about 15 times a day!

When you need a break, call a friend you will make you laugh. You can call anyone you know who has an upbeat, positive attitude. Afterward, you will find that you feel much more relaxed, energized, and able to regain your focus and go on with your day.

- Take a 20-minute power nap.

Keep an alarm clock with you at work so that, if necessary, you can nap in your office. Studies have shown that 20 minutes is the optimal time for napping it gives us much-needed rest without making us overtired. More than 30 minutes of sleep will make you groggy.

- Change your activity.

Sometimes, repeating the same activity all day like making sales calls can cause stress, especially if you're not achieving spectacular results.

If you've been inside all day, go outside for a while. Take an exercise break. Practice a musical instrument. Start a new project. Find something you can do for 30 minutes or an hour that will allow your mind to go in a completely different direction from what you've been doing all day. You'll come back to your work refreshed and renewed, and with a significantly lower stress level.

- Don't put all your eggs in one basket.

Not all sales will go well, so make sure you have alternatives. One of the most stressful selling situations is when there are other parties or outside influences over which you have no control. Sometimes you have to depend on people who may not be pulling their weight, or who may be going through their own stressful times. If something's not working, at least you can move on to another situation in which you can get a greater ROI.

While stress can sabotage a sale, it can also be a great motivator. Concern that things are not going well can push you into high gear and get you thinking in new directions. It can save you from becoming complacent. But don't wait for stress to push you into making that extra effort.

Most stress is caused by thinking about the things you haven't done. If you've done all you can upfront, you will avoid most situations that cause you stress. And that's the goal to avoid stress as much as possible so you don't have to constantly find ways to relieve it.