One possible version:Hello,everyone!As you can see,an increasing number of students in our school have been undertremendous pressure ever since senior high school,thus developing an unhealthy lifestyle,such asstaying up deep into night,rushing through meals,taking little physical exercise and so forth.Not onlywill these bad living habits do harm to our health,but they will have a negative impact on our study.Hence,it's high time that we should take immediate action and say no to the unhealthy lifestyle.First of all,we should form the good habit of keeping early hours.As the saying goes,early to bedand early to rise make a man healthy,wealthy and wise.In addition,we're supposed to take mealsslowly and regularly,which contributes to good digestion and health.Last but not least,it's stronglyrecommended that we should spare as much time as possible to work out.Only in this way can we live ahappy and healthy life and make our study more productive.