A widespread heatwave across Japan has resulted in 142 people being transported to hospitals on Wednesday with suspected heatstroke. Temperatures climbed sharply across eastern and western Japan, with areas inland experiencing dangerously high heat, exceeding 39 degrees Celsius in Yamanashi Prefecture. The forecast for Thursday predicts even higher temperatures, particularly in Saitama Prefecture, where 40 degrees Celsius is expected. This level of heat poses a life-threatening risk. Authorities are urging residents to take extra precautions against heatstroke, emphasizing the importance of preventative measures. The public is advised to remain vigilant as temperatures are expected to surpass Wednesday's levels in many regions.