熱中症

最近は酷暑での熱中症が多発。
お年寄りでは亡くなる方まで。
子供の頃は日射病はよく聞いたが
熱中症はあまり聞かなかった。最近の言葉か？
外人は肩こりがなく、理由は単語がないというのを聞いた。
熱中症も単語をなくせば減るのかな

Recently there were many peoples who caught a heatstroke.
Even some of old persons pathed away.
I often heard a sunstroke at junior school age
but I didn't heard heatstroke. Is the heatstroke lately?
Foreigner didn't catch ”Katakori” because there was no words.
So if the word "heatstroke" go away, there will be no heatstroke?