1. Less stress.
Curling up in a sunny patch on the floor or even lying your head down on your desk for a quick snooze brings relaxation. Research found that stress hormone levels were lower in those who took stress-reducing actions such as napping. Take a break each day from the stresses and reduce your risks, find a quiet, comfortable spot and take a nap. Even a short power nap can leave you feeling refreshed, renewed, and more focused.
2. Increased alertness and productivity.
If you have the opportunity for a power nap, particularly after a poor night of sleep, by all means, take one. You will feel more alert and energetic afterwards, and once rested after your mid-afternoon nap, your mood, efficiency, and alertness level will improve greatly. Scientists have even proven that taking a 20-minute nap approximately eight hours after you have awaken will do more for your stamina than sleeping another 20 minutes in the morning. Of course when you first come out of your afternoon nap, you will feel a bit groggy for around ten minutes, but once your decline in motor dexterity dissipates, you will reap the rewards of being well rested and ready to go for the rest of the day.
3. Improved memory and learning.
Naps aren’t just for the very young, old, and sluggish. Daytime dozing may enhance a person’s capacity to learn certain tasks. That, at least, is the eye-opening implication of a new study in which college students were challenged to detect subtle changes in an image during four different test sessions on the same day.
Participants improved on the task throughout the first session. The students’ speed and accuracy then leveled off during the second session. The scores of the participants who didn’t nap declined throughout the final two sessions. In contrast, volunteers who took a 20-minute power nap after completing the second practice session showed no ensuing performance dips. What’s more, 1-hour power nappers responded progressively faster and more accurately in the third and fourth sessions. It looks like napping may protect brain circuits from overuse until those neurons can consolidate what’s been learned about a procedure.
4. Good for the heart.
研究人员说，中午打40分钟瞌睡可能减少死于心脏病的风险，特别是对年轻健康的男性来说。他们调查了23，681个居住在希腊无冠心病、中风和癌症史的人，发现每周至少三次30分钟午睡的人因心脏相关疾病死亡的风险降低37％。研究人员综合考虑了健康状况、年龄及是否从事体力活动等。所以，试试吧，午睡一会 — 一个短短的午睡可能避免今后生活中心脏病的发作。众所周知，有午睡习惯的国家往往心脏病发病率较低。
Taking 40 winks in the middle of the day may reduce the risk of death from heart disease, particularly in young healthy men, say researchers. They studied 23,681 individuals living in Greece who had no history of coronary heart disease, stroke or cancer when they first volunteered, and found that those who took a 30-minute siesta at least three times a week had a 37% lower risk of heart-related death. The researchers took into account ill health, age, and whether people were physically active. So go ahead and nap — a short daily snooze might ward off a heart attack later in life. It is known that countries where siestas are common tend to have lower levels of heart disease.
5. Get motivated to exercise.
Sufficient sleep and naps help motivate exercise. Some 28 percent of adolescents say they are too tired to exercise, due to sleep. As adults, let’s not let tiredness ruin our jogs. You’re guaranteed to run longer, faster, more efficiently and mindfully when your body has it’s required amount of zzzz’s. So, store-up, shore-up and build-up your energy reserve with a power nap. It’s easy (free!) and proven effective.
2011-08-05 17:33 编辑：crystal156