仔细阅读下面短文并按照语境完成填空 (每空只能填一个单词)，注意语法，词性、词形变化等。

Dear Dr Health,

     I think too many people take weight-loss pills without really knowing that they can 1._______ their

health.

     I read about a Canadian actress 2._______ had to go to hospital because she took some weight-loss

pills. She lost 7 kg in two months. However, the pills 3._______ something that causes liver failure.

     Recently, my cousin read about a weight-loss pill and she really wants to try it. I've told her the story

of the 4. _______, but she won't listen. She's only 12, but has become a girl who is worried 5. _______

her figure and how she looks. She often refuses to eat. My aunt is worried that my cousin will buy the

pills in secret. She says health is priceless. She thinks that children must eat properly 6._______ they are

growing all the time.

     What am I to do? Please help me.

Yours truly,

Xiao Ming