How strolling within the searing 40C warmth could be harmful for even wholesome hikers… as Dr Michael Mosley is discovered lifeless in Greece

Strolling in excessive temperatures – the Greek isle of Symi has seen temperatures of between 35C and 40C in current days – could be harmful for even a wholesome individual not taking enough precautions.

Warmth can put quite a lot of pressure on the physique because it struggles to take care of its regular temperature of 37C (97.6F).

It might probably trigger warmth cramps, exhaustion and emotions of confusion and nausea.

At its most excessive we are able to undergo heatstroke, which may deliver on organ failure and show deadly.

Agia Marina in Symi, Greece, near the place Dr Mosley’s physique was found throughout a search and rescue operation 

Heat can put a great deal of strain on the body as it struggles to maintain its normal temperature of 37C (97.6F)

Warmth can put quite a lot of pressure on the physique because it struggles to take care of its regular temperature of 37C (97.6F)

It can cause heat cramps, exhaustion and feelings of confusion and nausea. (Stock Image)

It might probably trigger warmth cramps, exhaustion and emotions of confusion and nausea. (Inventory Picture)

At its most extreme we can suffer heatstroke, which can bring on organ failure and prove fatal. (Stock Image)

At its most excessive we are able to undergo heatstroke, which may deliver on organ failure and show deadly. (Inventory Picture)

The physique’s major weapon to cease overheating is sweating. As sweat evaporates, it cools the physique.

However humid situations scale back the effectiveness of sweating because the moister the air, the much less moisture can evaporate from the pores and skin. Because the physique overheats – and heatstroke units in – the flexibility to sweat shuts down, and the physique’s temperature can spiral increased.

Extreme sweating additionally places a pressure on the guts. It has to pump more durable to ship blood, which carries warmth from inside the physique to the floor.

The hazard mounts because the physique’s inside temperature heats up previous its regular degree. Between 39C and 40C, fatigue units in as our mind tells our muscle tissues to decelerate.

Exhaustion happens between 40C and 41C, as our organs start to lose the flexibility to operate. The subsequent stage – when the physique’s temperature rises above 41C – is heatstroke.

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