几项研究表明：有规律地进行举重练习或有氧锻炼能改善睡眠质量，延长睡眠时间。自然，疲惫减少，从而使你在白天能更好地工作。
如同静坐沉思、个人嗜好或其他任何休闲活动一样，锻炼有助于大脑在日常的思考、责任和负担之余得到必要的休息。
最后，还有一条坚持锻炼的理由。当你进行有规律的锻炼时，你的身体部件会运转得更好——你会更健壮、更健康，少受疼痛的折磨。那种感觉简直太棒了！
strenuous ['strenjus] adj. 费力的；须用力应付的；繁重的；艰苦的
Strenuous labour wore out their youth.
繁重的劳动使她们失去了青春。
session ['sen] n. （进行某活动连续的）一段时间
He have to attend a retrain session.
他不得不参加一期的再培训。
psychotherapy [,saik'erpi:] n. 精神疗法；心理疗法
The psychotherapy is carried out in small interactive groups.
这种心理治疗是在互动的小组之间进行的。
aerobic ['robik] adj. 需氧的；有氧健身的
Aerobic exercise helps to build up stamina.
有氧健身操有助于增强耐力。
当你感到沮丧时，锻炼能使你重新振作。
锻炼能缓解工作、人际关系，甚至生活当中方方面面的压力。
如同静坐沉思、个人嗜好或其他任何休闲活动一样，锻炼有助于大脑在日常的思考、责任和负担之余得到必要的休息。
A state of physical and mental health allows you to take part in exercise comfortably and enjoyably.
take part in：参加；参与……活动
You can look forward to it, and feel good afterwards.
look forward to：企盼；盼望
关于铅笔的一则寓言
A Parable of the Pencil
佚名 / Anonymous
The Pencil Maker took the pencil aside, just before putting him into the box.
"There are 5 things you need to know," he told the pencil, "Before I send you out into the world. Always remember them and never forget, and you will become the best pencil you can be.
"One: You will be able to do many great things, but only if you allow yourself to be held in someone's hand.
"Two: You will experience a painful sharpening from time to time, but you'll need it to become a better pencil.
"Three: You will be able to correct any mistakes you might make.
"Four: The most important part of you will always be what's inside.
"And Five: On every surface you are used on, you must leave your mark. No matter what the condition, you must continue to write."
The pencil understood and promised to remember, and went into the box with purpose in its heart.
Now replacing the place of the pencil with you. Always remember them and never forget, and you will become the best person you can be.
One: You will be able to do many great things, but only if you allow yourself to be held in God's hand. And allow other human beings to access you for the many gifts you possess.
Two: You will experience a painful sharpening from time to time, by going through various problems in life, but you'll need it to become a stronger person.
Three: You will be able to correct any mistakes you might make.
Four: The most important part of you will always be what's on the inside.
And Five: On every surface you walk through, you must leave your mark. No matter what the situation, you must continue to do your duties.
Allow this parable on the pencil to encourage you to know that you are a special person and only you can fulfill the purpose to which you were born to accomplish.
Never allow yourself to get discouraged and think that your life is insignificant and cannot make a change.
铅笔被放入盒子前，铅笔制造商把它拿到一旁。
他告诉铅笔：“在我将你送到世界各地前，你要知道五件事，并时刻铭记在心，永远不要忘怀。这样，你才能成为最好的铅笔。
“第一，你能做出许多伟大的事情。前提是，你必须允许别人用手握住你。
“第二，有时，你会体验被削尖的痛楚，但这种经历会让你变得更优秀。
“第三，你要能改正自己可能犯下的任何错误。
“第四，内芯是你身体最重要的部分。
“第五，你必须在被使用的每一个表面留下痕迹。不论在何种情况下，你都得继续写下去。”
铅笔明白了这些道理，并许诺永远铭记。然后，它胸怀这个目标进入了盒子。
现在，换位思考一下，把自己假想为铅笔。永远记住它们，永不忘却，这样你就能成为最出色的人。
第一，你能成就丰功伟业，但你必须允许上帝对你的掌控，并允许他人因觊觎你的天赋而接近你。
第二，你会经历生活中的各种艰难险阻，不时体验磨难的痛苦。但是，你需要它们，这样你才能变得更坚强。
第三，你要能纠正自己可能犯下的任何错误。
第四，内在品质是你的最大财富。
第五，你必须在你所有途经之地，留下足迹。不论何种情况，你都必须尽职尽责。
让这则关于铅笔的寓言来激励你，让你知道自己是独一无二的。你与生俱来的目标，只有你自己才能实现。
永远别让自己气馁，不要认为自己的生命微不足道，且无法改变。
experience [ik'spirins] v. 经历；体验；感受；遭受
The city experienced over 2,000 such incidents last year.
去年，这座城市发生过2000次以上这类事件。
replace [ri'pleis] v.（用……）替换；（以……）接替
Replace the old with the new.
除旧更新。
access ['鎘ses] v. 接近；进入；使用
He is easy to access.
他平易近人。
parable ['p鎟bl] n. （圣经中的）寓言故事
This parable tells us not to trust strangers.
这则寓言告诫我们，不要相信陌生人。
你与生俱来的目标，只有你自己才能实现。
永远别让自己气馁，不要认为自己的生命微不足道，且无法改变。
You will experience a painful sharpening from time to time, but you'll need it to become a better pencil.
from time to time：有时；不时；偶尔
You will experience a painful sharpening from time to time, by going through various problems in life.
go through：遭受；经历
生命本身就是最美的希望
Life Is the Best Beautiful Hope
佚名 / Anonymous
When I was in the 8th grade in Ohio, a girl named Helen in my class had a terrible accident. As she was running to the bus in order not to miss it, she slipped on some ice and fell under the rear wheels of the bus. She survived the accident, but was paralyzed from the waist down. I went to see her, in my 13-year-old mind thinking she wouldn't live normally from then on.
Over the years, I moved and didn't think much about Helen after that. Three years ago, in Florida, my oldest son was hit by a car while riding his bike, causing a terrible brain injury. While I was looking after my son, a lady who said she was the hospital's social worker called. It was a particularly trying day. I burst into tears for no reason and hung up.
A short time later, a beautiful woman, in a wheelchair, rolled into my son's room with a box of tissues. After 16 years, I still recognized Helen. She smiled, handed me the tissues and hugged me. I told her who I was, and after we both got through the shock of that, she began to tell me about her life since we last saw each other. She had married, had children and gotten her degree so that she could smooth the path for those less fortunate than her. She told me that if there was anything she could give me, it would be hope.
Looking at this wonderful, giving person, I felt small. But I also felt the first hope I had felt since learning that my son was hurt. From this person that I thought would have no quality of life, I learned that where there is life, there is hope. My son miraculously recovered and we moved back north, but I owe Helen a debt that I can never repay.