A calorie is a unit of energy, not a measure of weight or nutrient density. The calories you see on nutrition labels，however，are actually kilocalories. The calories on food packaging always refer to kilocalories, even though it just says “calories”. One kilocalorie is the amount of energy required to heat 1 kilogram of water by 1 degree Celsius. Calories in our food all come from one of the three nutrients: fats, carbohydrates and proteins.

In 1990, the U. S. government passed the Nutrition Labeling and Education Act, which means that before any packaged food in the U. S. hits the shelves, food scientists have to measure its nutrients and calories. One way to do this is using a tool called bomb calorimeter（弹氧热卡计）. This tool directly measures the amount of energy that a food contains. To use this tool, scientists place the food in question in a sealed（密封的）container surrounded by water and heat it until the food is completely burned off. Scientists then record the rise in water temperature to determine the number of calories in the product.

Food scientists also rely on a calculation developed by the 19th-century U. S. chemist Wilbur Olin Atwater to indirectly estimate the number of calories in food products. Calorimeters don’t take into account that humans lose some calories through heat and feces（类便）. Atwater’s experiments found that proteins and carbohydrates each have about 4 calories per gram and fats have 9 calories per gram.

However, some experts say that the Atwater system is outdated and inaccurate. A 2012 study found that the energy content of certain foods, such as nuts, could not be accurately calculated by the Atwater system. Besides, it does not take into account the digestive process, but assumes the complete conversion of nutrients to energy.

   We all know that we need some degree of smarts to make it in the business world. The measure of this " smarts" is IQ. You were born with your IQ and it stays relatively the same throughout life. So it is pretty hard to become an Einstein if you were born with an average IQ. People often associate someone's IQ with his or her ability to be successful. While important to you, IQ becomes less important as you grow in your career. Actually, there are other ingredients that are important to ensure career or business success, which account for about 80% of adult success.

EQ is one of the key ingredients. Your EQ is really about soft skills. It means being able to relate to others and make things happen. According to Susan Dunn, the EQ coach, “The higher up you go in your career, the more EQ matters. Eventually you'll find yourself in a playing field where everyone has skills as good as yours, and then what makes you stand out? It's how you handle yourself and others , your leadership and communication skills and other emotional intelligence competencies （能力）. ” The great news about EQ is that you can improve it. Unlike IQ, you can work on different EQ competencies so that you can increase your EQ score.

But to succeed, combining a high EQ and IQ is not enough. You also need to think about your RQ. The term RQ was coined by Dr. Charles who found the most successful companies all have one thing in common - strong reputations or high RQs. But RQ is not just for companies. We as individuals can combine it with our IQ and EQ to ensure career success. To succeed you need to be known for something. You must stand out from countless （无数的） others with similar skills and experience. Like EQ, your RQ can be improved with personal work. Understanding, building and communicating your personal brand will help you increase your RQ and your ability to take control of your career.

   As the pace of life continues to increase, we are fast losing the art of relaxation. _______ you are in the habit of rushing through life, being on the go（忙碌）from morning till night, it is hard to _______. But relaxation is _______ for a healthy mind and body.

Stress is a（n）_______ part of everyday life and there is no way to _______ it. In fact, it is not the bad thing that it is often supposed to be. A _______ amount of stress is important to provide motivation and give _______ to life. It is only when stress gets out of control that it can lead to poor performance and _______ health.

The amount of stress a person can bear _______ very much on the individual. Some people are not afraid of stress, and such a ________ is obviously chief material for managerial responsibilities. Others lose heart at the ________ of unusual difficulties. When exposed to stress, in whatever form, we ________ both chemically and physically. In fact we make a choice between ________ and fight. And in more ancient days the choices made the ________ between life and death. The crises we meet today are ________ to be so extreme, but however little the stress, it requires the same response. It is when such a reaction ________ long, through continued exposure to stress, that health becomes ________. Such serious conditions as high blood pressure and heart disease have ________ links with stress. Since we cannot ________ stress from our lives we need to find ways to ________ it.

So what do you think of stress? What is your way to deal with it?