People volunteer for different reasons, but probably most of us
volunteer in order to try to improve life for other. However, generosity      【C1】________
brings a reward. It seems that volunteers can expect to benefit for              【C2】________
themselves as well.
      In the past few years, studies have shown that people who
volunteer experience great levels of self-esteem than those                         【C3】________
that don't. Similarly, their overall health and well-being also improve.         【C4】________
People who volunteer regular today may live longer in the future, and        【C5】________
they tend to suffer from fewer diseases-although of course there are
no guarantees!
      Partly, these health benefits is due to the extra exercise,as volunteers    【C6】________
are usually fairly active people. Helping others burns calories! What's          【C7】________
more , it seems that we generally enjoy make others happy, which in turn   【C8】________
boosts our energy and fitness levels. It is now generally agreed that being
down in the dumps for extended periods of time is bad for our health, as
depression weakens us physically as well mentally.                                        【C9】________
      So how much time should we volunteer for? Some studies suggest
that we need to volunteer for at most 100 hours a year to enjoy the full      【C10】________
advantages. At the end of our first year of volunteering, we will have
transformed our own lives for the better, too.

【C1】

【C2】

【C3】

【C4】

【C5】

【C6】

【C7】

【C8】

【C9】

【C10】