As an intense heatwave grips Delhi and other parts of North India, with temperatures touching 45-47 degrees Celsius in some places, it is important to take steps to prevent heat exposure and avoid heatstroke, dehydration, and other heat-based illnesses. High temperatures can play havoc with the body and cause long-term issues for the brain, heart, and kidneys. Stepping outdoors at peak heat hours must be avoided at all costs, and staying hydrated by drinking plenty of water, eating fruits and vegetables, and consuming cooling drinks like buttermilk or nimbu paani (lemonade) is crucial.