By now you're probably wondering what color does what.

In general, colors of the red spectrum (magenta-red-orange-yellow) are warm and stimulating, which makes sense once you know that red stimulates the posterior hypothalamus that regulates the body's "fight-or-flight" response - the mechanism that tells the body it has to act now and fast.

On the other hand, colors of the blue spectrum (green-blue-indigo-violet) have proven to be calming and sedating. Again, that makes sense once you know that blue stimulates the anterior hypothalamus that regulates the parasympathetic nervous system, the mechanism that instructs your body to go into relax mode.

So, what can each individual color do for you?

Red is not just an exciting color, it is even good for migraines and malignant tumors. (In a worldwide experiment, over 3000 people with all kinds of malignant tumors were treated with this method.) It improves blood circulation and vitality, reduces anemia and provides vitamin B12. This stimulating color is good for your courage and self-confidence and has been shown to activate your body's adrenaline response, causing you to sit up and take notice. Salespeople are advised to wear something red.

Orange is the color of fun and cheer. Its warm, energetic hue is a strong antidote for depression, loneliness and boredom. It increases immunity, helps with digestion, eating disorders, food allergies and kidney problems. It is also good for respiratory disturbances like asthma and bronchitis. Orange and red both fuel the appetite.

Yellow has always been known as a cheerful color. Indeed this color of sunshine acts as an antidepressant that also fights fatigue and helps with skin problems and indigestion. It is good for your brain, metabolism, liver, spleen and kidneys, and it provides vitamin A. It stimulates creativity, good memory and fast thinking. Yellow is also believed to cleanse impure thoughts, pump up your endurance and help fulfill ambitions.

Blue is the color of the ocean. Think how you felt the last time you stood at the water's edge, watching the waves. Not surprising then that blue is a cool, calming, relaxing and refreshing color. Blue is a healing color as well. It's an antiseptic, and it's very helpful for pain - especially rheumatoid arthritis. It also heals injured tissue, nonmalignant tumors and skin and lung conditions. It lowers fever, and it's good for burns and sore throats. It even helps the body resist poison. It is a stable, harmonious color, and is considered helpful for effective communication.

With its spot in the middle of the spectrum, green is a balancing color. Since it also represents nature, it's soothing and fresh and brings inner peace and happiness. Its calming effect, though, is not limited only to your state of mind. Green also relaxes all the organs. It destroys infection and is considered very effective for a long list of ailments including broken bones, head colds, ulcers, boils, eye disease, headaches, blood pressure, diabetes and heart troubles. Green gem medicines have been used especially for burns and skin diseases. In addition, green symbolizes prosperity, growth, healing and fertility. Which makes sense when you realize that green also goes hand in hand with nature and our most alluring, youthful, vigorous season, Spring.

Indigo calms the nerves and lymphatic system. It purifies the bloodstream, provides vitamin K and is beneficial for stomach disorders, migraines and cataracts. It is soothing to the eyes, ears and nervous system, and it also represents unity, honesty and gentleness. It has been used to treat mental disorders.

Violet symbolizes swiftness, encouragement and affection. It also provides vitamin D, and benefits mental disorders and the nervous system. Both violet and indigo bring on good, deep sleep

White is a mixture of all colors. It is the universal symbol for innocence, purity and peace. It is good for cancer, Seasonal Affective Disorder (SAD), anorexia, bulimia, insomnia, jet-lag, shift-working as well as alcohol and drug dependency.