Magnesium deficiency and stress are linked so closely that some doctors and dietitians advise people who lead hectic lives to add magnesium-rich foods like bananas to their diets. Most Americans do not eat the Recommended Dietary Allowance (RDA) of magnesium (280 mg for women, 350 mg for men), says Dr. Mildred S. Seelig, former president of the American College of Nutrition. If you juggle a hectic schedule, the problem is worse: stress hormones, which flood the body during limes of tension- drain magnesium from cells, resulting in lower resistance to colds and viruses and a tired feeling.
Researchers have also found that increased magnesium in-take results in less anxiety and better sleep. If you don't like bananas, other good magnesium sources are nuts, beans, and leafy greens.
Researchers have found that even a small deficiency in vitamin C, a key ingredient for boosting levels of energizing norepinephrine, can leave you feeling irritable and blue, A lack of vitamin C rich foods also inhibits your body's ability to absorb the iron it needs to fight fatigue.
In a 2001 study of more than 1000 men, German researchers found that among those with diets only slightly deficient in vitamin C, a daily dose of 150 mg, roughly the amount in two oranges, resulted in less nervousness, crankiness and depression.
Consuming more than this amount of vitamin C may make you feel even more upbeat. University of Alabama researchers found that those who regularly consumed more than 400 mg of vitamin C per day (roughly two 12-ounce glasses of freshly squeezed orange juice or six oranges) were half as tired as those who consumed less than 100 mg. per day. Vitamin C supplements are also effective.
Brazil Nuts.
Due to the rich soil in which they grow, Brazil nuts are loaded with selenium, a trace mineral that some research has linked to upbeat moods.
In a 2001 study involving 17 men and 33 women at the University of Wales , Swansea , those given 100 micrograms of selenium (the equivalent of one or two Brazil nuts) each day for five weeks reported a greater sense of happiness, more energy and a reduction in anxiety compared to participants given a placebo. These results were especially evident among those with low levels of dietary selenium, illustrating the importance of having a sufficient amount of this mineral in your diet. Other good sources of selenium: seafood, beef and whole-grain breads.
Chocolate
Many women crave chocolate, especially when they're suffering from premenstrual syndrome (PMS) or when boredom or stress strikes. There are a number of possible reasons for this. Some experts believe that like many sweet carbohydrates, chocolate may have a soothing effect. Others suggest that caffeine and similar substances in chocolate may act as stimulants. If nothing else? The sheer pleasure of eating it may be all you need to lift your spirits.
Coffee
That morning cup really can jump-start your day. Recent research links the amount of caffeine in one to two cups to clear thinking and more energy for up to three hours. In a study of50 sleep-deprived people, the amount of caffeine in as little as 1.5cups of coffee boosted their concentration, energy and confidence levels.
Some researchers believe caffeine causes a slight, temporary rise in blood pressure and blocks hormonal messengers that lull us to sleep. However, more than two or three cups a day may make you irritable and jittery.
Blot Peppers
If you like hot salsa, you may be attracted to more than its taste. According to University of Pennsylvania researcher Paul Rozin, capsaicin can stimulates the mouth's nerve endings, causing a burning sensation. In response, Rozin theorizes, the brain releases endorphins, natural painkillers that may produce a temporary high.
So, the more hot peppers you eat, the stronger the soothing effect. In fact, some hot pepper lovers may just be hooked on the high. Moral of this story: when you eat certain foods you may become addicted to staying in a good mood.