If you're not careful, your body can get cold in the summer from the air conditioning and eating cold foods.
You can catch a chill in the hot summer weather if you don't pay attention to what you're doing.
この場合、次のような言い方ができますよ。
ーIf you're not careful, your body can get cold in the summer from the air conditioning and eating cold foods.
「気をつけないと、エアコンや冷たいものを食べて体が冷えるよ」
to get cold で「冷える」
ーYou can catch a chill in the hot summer weather if you don't pay attention to what you're doing.
「やることに注意しないと暑い夏に体を冷やすよ」
to catch a chill を使って「冷える」ことを言えます。
ご参考まで！
Your body can be easily chilled in the summer. From food and air conditioning.
"夏は油断すると体が冷えやすい。冷房や冷たい食べ物で。"
- Your body can be easily chilled in the summer. From food and air conditioning.
- You can easily get cold if you are careless in the summer from things like air conditioning and food.
夏は油断すると、実は体が冷えやすいです。
- You can actually get cold quite easily if you are careless in the summer.
カナダ 
アメリカ合衆国 
