◇Sharpening your memory.

　　Did you ever notice that sometimes when you are stressed, your memory seems to improve? Remember that test you passed where the answers seemed to come out of nowhere?     37  It's because of stress hormones（荷尔蒙）that increase your alertness when it's most needed．

　　       38

　　Successful employees turn stress into motivation．Have you ever noticed that you get the least amount of work done when you have the fewest deadlines? Too little stress can affect how much you actually get doneWhen you take risks and choose to get over the difficulty, it improves your mental toughness and self-confidence．

　　    Helping you resist the attack of illness．

　　    39    Believe it or not, the right kind of stress can help your body's defenses against illness．When you get sick, stress causes you to make hormones that battle threats to your healthThat burst of stress is helpful to your immune system when your body faces a threat．

　　    Making Your Life More Interesting．

　　    Think about some stressful situations that we consciously put ourselves in to make life more interesting and enjoyable, like asking someone out on a first date, conquering a known fear, or learning something new．These may not immediately come to mind when you think of stress because of the positive outcomes．   40  

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