3 . It’s easy to talk yourself out of exercising. Even when you have the best intentions to work out, excuses are so easy to find — “I’m too tired”, “I’m busy” or “The weather is bad”. Don’t worry!     1    

※ Take baby steps.

You’ll never try to run 10 miles just in a single day, right? When you do too much too soon, you’ll end up injured and discouraged. Take it easy as you get stated. Maybe you only run a quarter of a mile during your first week.     2    

※ Show the clock who is boss.

Health experts say that you should aim for at least 150 minutes of exercise a week, plus weight training at least twice a week. If you work too late to get to a gym, keep a set of weights at home. If you can’t do 30 minutes at once, break it up into 10 or 15 minutes’ sections.

※    3    

Your workout should be just as much a habit as brushing your teeth or eating breakfast. When it’s part of your routine, you won’t even have to think about it. In a few months, fitness can be regular in your day.

※ Keep it real.

You’re not going to shake off 30 pounds in a week.     4     Gradually, you should increase your workout schedule from 2 to 3 days a week, or exercise for 15more minutes each time.

※Celebrate.

It takes weeks to see real changes. Therefore, even a pound of weight loss or a pound of muscle gain is the reason to reward yourself.

    5    

5 . When kids enjoy an activity, they want to do more of it. Practicing a skill improves their abilities and helps them feel confident, especially when the effort is noticed and praised. Toddlers (学步的儿童) and preschoolers should play actively several times a day. Children from 6 to 17 years of age should do 60 minutes or more of physical activity daily. This can include free play at home and P.E. at school.

Preschoolers need play and exercise that help them continue to develop important motor skills—kicking or throwing a ball, playing tag or riding a bike with training wheels. Although some sports leagues may be open to kids as young as 4, organized team sports are not recommended until they’re a little older. Preschoolers can’t understand complex rules and often lack the attention span (持续时间) and skills needed to play sports. Instead of playing on a team, they can work on fundamental skills.

With school-age kids spending more time in front of screens, the challenge for parents is to get them to find physical activity they enjoy. This can range from traditional sports like baseball and basketball to biking, hiking, and laying outside. As kids get older, differences in ability and personality become more apparent. That is why it’s important to find an activity that’s right for your children.

Teens have many choices when it comes to being active—from school sports to after-school interests. It’s a good idea to have an exercise plan. Do what you can to make it easy for your teens to exercise by providing transportation and the necessary equipment (including workout clothes). In some cases, the right clothes and shoes night help a shy teen feel comfortable biking or going to the gym.

In addition to a child’s age, it’s important to consider his or her fitness personality. Meanwhile, be active yourself and support your kids’ interests. If you start this early enough, they’ll come to regard the activity as a normal and fun part of your family’s everyday routine.

6 . Nordic Walking

Started in Finland in the early 20th century, Nordic walking used to be a summer training exercise for cross-country skiers.     1     In that year, a Finnish company invented a new wrist strap (腕带) system to make the present-day Nordic walking technique possible. Outside of Finland, Nordic walking has been well received in Austria, Germany, Norway and Sweden.     2    

Nordic walking is great for people who are looking for a smart physical activity with maximum health benefits, combined with fun and convenience. Nordic walking takes fitness walking to a new level by adding poles to produce an incredible upper body workout.     3     Besides, it also takes stress off your ankles, knees and hip joints (髋关节).

    4     Nordic walking is no different. For best fitness results and physical safety, ensure that you use only Nordic walking poles which have been specifically designed for this sport. Don't try to use skiing or hiking poles which are designed and meant to be for a totally different purpose.

When you walk normally and carry poles with you, it is called the “2-wheel drive”. As soon as you hold the poles properly and start using your upper body, you're now in the "4-wheel drive". Every step should begin with the heel touching the ground.     5     Just hold them tightly every time when they hit the ground, and let them go as they are drawn back behind your body, finishing up with an open hand.

7 . It is not as simple as opening the door and hitting the track in winter. There are a few things you can do to ensure you are getting the most out of your run, and, importantly, not doing more harm than good.

Warm up, cool down

    1     Your muscles need some time to warm up when it's cold, so take it easy when you set off and do a few stretches （伸展）once you're finished.

Drink water

You might not feel hot, but that's because sweat evaporates （蒸发）more quickly into the chilly, dry air. So be sure to drink water before, during and after cold-weather workouts.     2     A belt bottle conveniently attaches to your waist so you don't have to carry it and can have a drink whenever you feel like it・

    3    

Running in cotton is a bad idea. Wear thin, breathable layers of synthetic （合成 的)）clothing that help protect you from the wind and snow, but still let out heat and moisture （水分）.Thirty percent of your body heat escapes through your hands and forty percent through your head. Wear a hat, or beanie （无边小便帽）, and gloves so your circulatory system can distribute warm blood to the rest of your body.     4    

Run into the wind

    5     . Obviously, it will be an easier passage home with some extra help from Mother Nature. But, more importantly, you won't have the wind in your face for the second half of your run, when you are more likely to be sweating and catch a chill.

8 . Two new studies suggest that modern running shoes could increase the risk of injuries to runners.

One study involved sixty-eight healthy young women and men who ran at least twenty-four kilometers a week. The runners were observed on a treadmill machine (跑步机). Sometimes they wore running shoes. Other times they ran barefoot.

Researchers from the JKM Technologies Company in Virginia, the University of Virginia and the University of Colorado did the study.

They found that running shoes create more stress that could damage knees, hips and ankle joints than running barefoot. They observed that the effect was even greater than the effect reported earlier for walking in high heels.

The study appeared in the official scientific journal of the American Academy of Physical Medicine.

The other study appeared in the journal Nature. It compared runners in the United States and Kenya. The researchers were from Harvard University in Massachusetts, Moi University in Kenya and the University of Glasgow in Scotland.

They divided the runners into three groups. One group had always run shoeless. Another group had always run with shoes. And the third group had changed to shoeless running.

Runners who wear shoes usually come down heel first. That puts great force on the back of the foot. But the study found that barefoot runners generally land on the front or middle of their foot. That way they ease into their landing and avoid striking their heel.

Harvard’s Daniel Lieberman led the study. He says the way most running shoes are designed may explain why those who wear them land on their heels. The heel of the shoe is bigger and heavier than other parts of the shoe, so it would seem more likely to come down first. Also, the heel generally has thick material under it to soften landings.

But the researchers do not suggest that runners immediately start running barefoot. They say it takes some training. And there can be risks, like running when your feet are too cold to feel if you get injured.

The study was partly supported by Vibram, which makes a kind of footwear that it says is like running barefoot. The findings have gotten a lot of attention. But the researchers say there are many problems in the way the press has reported in their paper. So they have tried to explain their findings on a Harvard Website.