目前在中学生群体中普遍存在体重增加，体质下降的问题。请就以下要点写一篇80字左右短文。
1．一些学生饮食习惯不好，喜欢吃垃圾食品，不爱吃蔬菜和水果。
2．一些学生很少锻炼身体，从不积极参加户外活动。
3．一些学生将大部分空闲时间用在玩电脑游戏上。
4．还有一些学生整天忙于学习，睡眠不足。
5．谈谈一两点你的建议或看法。
参考词汇：
eating habits 饮食习惯；junk food 垃圾食品；outdoor activities 户外活动
要求：
1.不要逐条翻译，内容要连贯。
2.词数：60-80。
    Nowadays，many student are getting heavier and unhealthier.Here are some of the reasons.
    __________________________

【考点】饮食．

【答案】Nowdays，many student are getting heavier and unhealthier.Here are some of the reasons.
Some students don't have good eating habits.They like junk food ，but they don't like eating fruits or vegetables.Some students hardly ever exercise and never take part in outdoor activities.Some students spend most of their free time in playing computer games.Some other students are busy with their study every day.Therefore，they can't get enough sleep.
In my opinion，students should sleep at least eight hours a day.Enough exercise and a balanced diet are also important for our health.All in all，only by eating properly ，exercising regularly and sleeping well can we stay healthy.