Ask a master to help translate two sentences (into English)

1 He was talking and laughing with his classmates and went home happily.

He had a pleasant conversation with his classmates with his diploma and went home beaming.

Eating too much will not make people healthier; On the contrary, eating too much, especially high-fat food, will be harmful to human health. Therefore, dieting is desirable.

Eating too much will not make people healthier; On the contrary, eating too much food, especially high-fat food, may be harmful to human health. Therefore, this diet is desirable.