In a heatwave, who to protect and how

Who is at risk People working in the sun (rickshaw, construction, hawking), the over-65s, children, the pregnant, and anyone with heart disease or diabetes.

Know heatstroke - Hot body but sweating has stopped - Confusion, slurred speech, fainting - Fast pulse, vomiting

This is an emergency. Shade, loosen clothes, wipe with wet cloth, cold water on the neck and armpits, water if conscious, and 999.

What a neighbourhood can do - A water point at the corner: a filter, some glasses, some shade. There is a template on this site. - Ask employers to stop outdoor work from noon to three. - One phone call a day to the elder who lives alone.

For yourself Light, loose clothes, head covered, water every hour, less tea, coffee and cold drinks; if your urine is yellow, drink more.