Update : 2022-5-20
"Heat Acclimatization" is effective to prevent heat stroke in midsummer.
It makes your body change: release the heat of body easily by accustoming to the heat in advance.
You can know the "Heatstroke Zero Project" by the Japan Weather Association on the web in English:
Heatstroke Prevention and Strategies / Heatstroke Zero (netsuzero.jp)
Points
(1)Moderate exercise makes one sweat
(2)Bath in a bathtub not only taking a shower
(3)Do not cool your body too much with an air-conditioner
Inquiry
Kenko-zukuri-ka (Public Health Section)
Tel.(048) 922-0200
FAX(048) 922-1516