When your body can’t keep itself cool you can develop heat illnesses, ranging from heat cramps to heat exhaustion and, most serious of all, heat stroke.
dehydration
Diarrhoea
Many cases of diarrhoea don’t need specific treatment, but it’s important in any case of diarrhoea to stay hydrated by drinking plenty of liquids.
Diabetes insipidus
Diabetes insipidus is a rare condition that causes excessive thirst and the passing of large amounts of dilute urine.