there are two different opinions about this.
Some people think oppositely,
it is needless to do it everyday since we have much work to do
because you can obtain nothing if you are unhealthy.
a recent investigation shows that people in the past is healthier than present
join ----- attend?
Although work is important for us,however should we neglect our bodies?
in a word,i believe the number of people do exercise will steadily growing in the future