【推荐1】Volunteering is a great way to help your community. It is something that people should be doing more often, because it is a great way to give back, while also helping out those less fortunate. Another reason that you should volunteer is because it has a lot of health benefits associated with it, which people don’t seem to really know about.     1    .

Decreases Depression

Volunteering is a great way to decrease depression, especially if you are someone who doesn’t have a great support system at home.    2    . When you are volunteering, you are around other people, often talking and laughing, which helps decrease depression symptoms.

    3    

A lot of volunteering involves packing boxes or moving things or people, and that is very beneficial for your heart. You might actually volunteer at a local animal shelter, which was great because you can walk the dogs and clean cages, which are all ways to stay active. If you are volunteering doing something you love, you may not even notice that you are exerting physical energy, so it’s much better than just working out because you enjoy it.

Makes You Feel Internally Satisfied

When you volunteer, you feel this satisfaction out of what you are doing, because you know you are helping other people. When you feel this satisfaction, your mental and physical health improves, and you just feel better overall.    4     And this is something that volunteering provides.

Decreases Anxiety

    5    . When you start volunteering, you find new ways to communicate with other people. It helps decrease your anxiety levels. It can help you find ways to interact with others and can help you build confidence around others.

【推荐1】Before she leaves home in San Francisco, California, Jennifer Schaefer, puts on long sleeves and a big hat she calls her “personal umbrella.” With her fair skin, red hair, memories of bad childhood sunburn, and a family history of skin cancer, Schaefer is painfully aware of the danger of exposure to ultraviolet (紫外线) radiation, which accounts for the vast majority of skin cancers.

So she finds it unbelievable how few people bother with sun safety, with most preferring sun worship to sun protection. “In our culture, it's almost funny to be too protected,” she says, highlighting the way her friends tease her when she puts on her bathing suit—a protective “rash guard top” and knee-length board shorts. “We're slowly starting to become aware of the long-term effects of the sun, but it's like global warming—people are not going to make serious changes until they feel a direct impact.”

That impact has helped push Australians, who are famous for sun loving, into changing their behavior. With its high solar ultraviolet levels and mostly fair-skinned population, Australia has the highest rate of skin cancer in the world. But after decades of increase, the melanoma(黑色瘤) rate began to stay at a steady level in the mid 1990s. The incidence of melanoma among young people is now falling, as national surveys show that most Australians-more than 70% of adults and 55% of adolescents—no longer prefer a tan (棕褐色).

A 2013 study shows that, in addition to Australia, a handful of countries—notably New Zealand, Canada, Israel, Norway, the Czech Republic(or women) and the United States (for white men) —have melanoma rates that are decreasing or stabilizing among young people.

Back in San Francisco, Jennifer Schaefer is doing her best to educate the next generation. Her eldest daughter automatically puts on a hat to go outside. “Habits really start in children—it is like brushing your teeth,” she says.

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