Thiruvananthapuram: Kerala has stepped up heatwave vigilance after soaring temperatures and rising ultraviolet (UV) radiation levels prompted a statewide alert from Health Minister Veena George on Friday. Residents have been urged to follow strict precautions against heat-related illnesses.

The Health Department said the UV index remains particularly high between 11 a.m. and 3 p.m., when direct exposure to sunlight is considered hazardous. The minister warned that prolonged exposure during these hours could result in sunstroke or heat exhaustion, adding that prevention remains crucial.

Vulnerable groups such as children, the elderly, pregnant women and people with chronic illnesses have been advised to stay indoors during peak hours.

Heat health plan activated across state

In response to increasing heat stress, the government has activated a Heat Health Action Plan. Dedicated heatstroke clinics have been set up in major hospitals.

These facilities are equipped with cooling systems and essential medicines, while surveillance systems for heat-related illnesses have also been strengthened. Health officials said monitoring has been intensified as conditions persist.

Experts cautioned that excessive UV exposure can lead to skin and eye damage, weaken immunity, and in severe cases, increase cancer risk through cellular DNA damage.

Public advised on hydration and protection measures

Authorities have advised the public to use protective measures such as umbrellas, hats, sunglasses and sunscreen, along with loose, light-coloured cotton clothing.

Dehydration remains a concern, with officials noting that fluid loss can occur even without clear signs of thirst. Frequent water intake has been recommended, alongside traditional cooling drinks such as buttermilk, salted rice gruel and lemon water.

Consumption of sugary and carbonated drinks should be limited, officials said.

People showing symptoms such as dizziness, fatigue, nausea, excessive sweating or reduced urination have been urged to seek immediate medical attention. Authorities also warned against leaving children or the elderly inside parked vehicles and stressed the need for proper indoor ventilation.

With summer intensifying, officials said public vigilance and timely precautions will be key in preventing heat-related health emergencies.