【推荐2】More and more people like bicycling and it is no surprise. It is fun, healthy and good for the environment. Maybe that's why there are 1.4 billion bicycles and only 400 million cars on roads worldwide today. Bikes can take you almost anywhere, and there is no oil cost!

Get on a bicycle and ride around your neighborhood. You may discover something new all around you. Stopping and getting off a bike is easier than stopping and getting out of your car. You can bike to work and benefit from the enjoyable exercise without polluting the environment. You don't even have to ride all the way.

Folding bikes work well for people who ride the train. Just fold the bike and take it with you. You can do the same on an airplane. A folding bike can be packed in a suitcase. You can also take a common bike with you when you fly. But be sure to look for information by getting on airline websites. Not all airlines are bicycle-friendly to travelers.

It helps to prevent heart diseases. Bicycling helps to control your weight. A 15-minute bike ride to and from work three times a week burns off five kilos of ft in a year. Bicycling can improve your mood.

Exercise like bicycling has been shown to make people feel better, more relaxed and self-confident. Bicycling is healthier than driving.

【推荐3】Any exercise is good exercise, but when it comes to losing weight, it's hard to beat running. After all, running is one of the most efficient ways to burn calories and get fit without having to restrict your diet.     1     If you're not a runner yet but interested in losing weight, here are four reasons running can be the best exercise for weight loss.

    2     When comparing running with walking the same distance, studies find that running will lead to greater weight loss, most likely because your resting energy expenditure stays elevated（高的）after you run. In a long-term comparison study of runners and walkers, calories burned through running led to 90% more weight loss than calories burned through walking.

Running is time-efficient. Even if the myth that running a mile and walking a mile burn the same number of calories were true, running is a considerably faster way to burn those calories.     3    

Running is convenient. Though many of us have accumulated a vast arsenal（武器，装备）of GPS gadgets and tech tees over the years, little is actually required to go running. You can do it alone. You can do it almost anywhere.     4     For this reason alone, running is the best workout for weight loss because it's cheap and accessible, and there are fewer barriers to maintaining a routine, even while traveling.

Two words: runner's high.     5     Fortunately, studies support what many runners have experienced on an anecdotal level-running can actually get you high. Scientists have found links between moderate to intense exercise and morphine-like brain chemicals, which explains the occasional flood of thrill that rushes over you during a hard run. That happy sensation you had after your last race makes you want to go for another run, right?