A 20-minute walk can give you a blast of energy that lasts all day long.  Scientist at the University of Vermont were surprised to find that not only does exercise give you an immediate mood and energy lift but the lift could last all day long.
 
Those mood-boosting endorphins you get from exercise (in this case a 20 minute walk) stay elevated for a few hours after exercise.  However, the effect of the exercise on your outlook helps you handle stress throughout the day.  Exercise is a stress reducer and whether it proceeds or follows the stress doesn't seem to matter.
 
I can honestly say that the ladies who start the day in my boot camp go home in a great mood and are able to handle the stress of the day much better.  Not only that but they get a better nights sleep as well.  Women tell me that other mom's at the bus stop ask them why they're in such a good mood.  Their kids say the mornings are more fun when they attend boot camp.  Well, that would be motivator enough for me, but then again, I get the same boost of energy teaching the boot camp.  You have to practice what you preach you know.
 
If you're feeling stressed or tired at work, get up and take a 20 minute walk and see the difference it has on the rest of your day.  You may even solve a problem while you're walking.  Exercise has been known to increase brain activity.

4 medium tomatoes, diced

2 tablespoons olive oil

2 tablespoons fresh lime juice

1/2 teaspoon salt

1/4 teaspoon freshly ground black pepper

2 hearts romaine lettuce, chopped

1/2 cup grated Cheddar

2 ounces baked corn tortilla chips (about 32 chips)