He suffered a condition called hyperthermia , which is the most severe form of heatstroke and requires immediate medical attention .
A combination of excessive heat , a constrictive uniform , and Matthew 's obesity caused his body to overheat .
Matthew suffered a condition called hyperthermia , which is the most severe form of heatstroke and requires immediate medical attention .
A combination of excessive heat , a constrictive uniform , and Matthew 's obesity caused his body to overheat .