article_snippet.sent: All were also all acclimatised to the hot, humid environment.
article_snippet.sent: Scientists noted that while none of Scientists volunteers exhibited signs or symptoms of heat intolerance, body temperatures such as these can pose a danger for some people.
article_snippet.sent: Scientists said the risk for heat-related illness, such as heat stroke, increases at 40°C (104°F).
article_snippet.sent: Dr Quandt noted that  participants started to experience dangerous core temperatures around 60 minutes into the session.
article_snippet.sent: In addition lowering the temperature of the room may appear obvious, but would help reduce the risk Dr Quandt Dr Quandt said.
article_snippet.sent: Knowing the risks associated with things like blood pooling and vasodilation, as well as the signs and symptoms of heat-related illness, is absolutely essential,' He added.
article_snippet.sent: WHAT ARE THE SIGNS OF HEAT EXHAUSTION?
article_snippet.sent: WHAT ARE THE SYMPTOMS OF HEAT STROKE?
article_snippet.sent: Suspected heat stroke should always be treated as a medical emergency, health experts warn, advising an ambulance is called in extreme cases.
article_snippet.sent: It is essential that they are aware of the early warning signs of heat intolerance.' the early warning signs of heat intolerance include cramps, headache, dizziness and general weakness.
article_snippet.sent: Not only does it take time for the body to acclimatise to activity performed in hot and humid environments, proper hydration is crucial.' '
highlights_snippet.sent: Experts warn one man's temperature reached 40°C/105°F putting one man at risk of heat exhaustion and heat stroke .