Ваш англоговорящий друг прибавил в весе. Написать электрическое письмо с советами,

Hey bro

1) eat less sugar, you are sweet enough ;)

2) go to do sports: boxing, running, etc.

3) drink a lot of water, it will help you to clean your stomack

4) Eat more fruits and vegetables

5) don't surf the net very long - it will hurt you

I think my advices will help you)