1 . 下列图表反映的是某高中2018年与2021年学生健康状况调查的部分数据，请你用英语为某报写一份报告，反映你校三年间学生健康状况的变化情况，分析其中原因，并提出一些改进措施。
注意事项：
1. 报告必须包括图表中所有内容，但不要逐条罗列；
2. 词数80左右。开头语已为你写好。

A recent survey shows that the health of the students in our school has been going from bad to worse in the past three years.

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