Most families in Beijing love to gather in front of TV sets after dinner．But Gao Ning，husband of Huang Xiaoying，and his parents have better things to do．They clean the dishes，laze around （休闲） a bit，change into track suits，put on their sports shoes and leave home．
The 32-year-old man and his wife sweat it out on treadmills（跑步机），go through the severe conditions of a group exercise session or do some stretching exercises under the guidance of personal trainers．And his parents join a group of retired people，most of them in their 60s，in a nearby community park to dance to the rhythms of traditional music．They use the intervals to chat with other members of the group，sharing their joys and pains．
The Gaos represent a growing number of Beijing families that sweat by exercise，especially because of the Beijing Olympics'public fitness drive．Gone are the days when many people considered physical labor as the only way of exercise．More and more middle-aged and elderly people have realized the importance of regular exercise．
"Most of the people who join us for the group dancing sessions suffer from chronic（慢性的） diseases that need a certain amount of exercise as treatment，"said Gao Ning's mother Gao Xiaohua，"It's a place for us to kill time，too．"
"Paying 1，000yuan （﹩146）a year as club fees is a waste of money，"said Gao Xiaohua．"Besides，we don't need that tough exercise routine．"
Gao Ning said："I feel relaxed and sort of reborn after a work-out．Without it my days are gloomy and I feel tired．"
Gao Ning and Huang Xiaoying make about﹩30，000a year，and pay﹩200each annually for their gym membership to get personal trainers for an hour a day．
"It's money well spent，"Huang said．"After you get all the necessities，money，job and a house，you realize how important health is．Without health，nothing is meaningful．"

(1) How old are most of the people who dance to the rhythms of traditional music in a nearby community park？（No more than 3words．） ______

(2) Why do the people like to join the group dancing sessions？（No more than 10words．） ______

(3) What is the main idea of this passage？（No more than 5words．） ______

(4) What does the underlined phrase"a work-out"in Paragraph 6refer to？（No more than 8words．） ______

(5) In terms of this kind of regular exercise，are you for or against？Please give your reasons．（No more than 20words．） ______ ．