Heat protection begins before a day becomes an emergency

Hot weather can become a health problem when the body cannot manage the heat it receives and produces. Preparation matters particularly for older people, young children, outdoor workers and people living with conditions that increase their vulnerability.

WHO's hot-weather advice highlights the importance of reducing exposure and recognising that heat can worsen existing illness. A workable plan includes access to a cooler place, appropriate fluids and adjustments to demanding activity. People whose fluid intake is medically restricted need advice suited to their condition.

Homes and workplaces do not offer equal protection. A shaded rest area, reliable drinking water and arrangements to check on someone living alone can make a practical difference. Indoor temperatures and overnight conditions also matter, especially when a building retains heat after sunset.

Confusion, collapse or other signs of suspected heatstroke require emergency help; moving the person to a cooler place and beginning cooling are urgent steps while assistance is arranged. Public warnings are most useful when linked to concrete local support. Treating heat as a shared planning issue gives families, employers and services a chance to act before a dangerous situation develops.