A hot and humid climate is a strain on the body, as we need to get rid of excess body heat. Travellers with chronic heart and lung diseases should discuss travelling with their physician and should sleep in rooms with air-conditioning. During the first few days after arrival, the body loses large amounts of salt through perspiration, and salt depletion may cause vertigo and unconsciousness. Taking extra salt during the first 3 to 4 days after arrival prevents salt depletion.
Heat stroke is an acute, life threatening condition where the body cannot get rid of heat. The condition is seen in hot, humid climates and poor physical condition often in connection with excessive alcohol predisposes to heat stroke.In the beginning the symptoms are general malaise and reduced perspiration. The dry skin becomes opaque and red with severe headaches and reduced consciousness following.
During this time the body temperature rises rapidly, and treatment is necessary.