Residents are reminded to check on neighbours and relatives as the mercury plummets.
Health chiefs at Essex County Council has issued the warning after a “Level 3” weather alert was issued for the East of England.
Elderly people and those with long-term health conditions are susceptible to further illnesses when temperatures drop.
Dr Mike Gogarty, director of public health at ECC, said: “Anyone can help elderly friends or relatives by checking on them regularly, particularly during severe weather.
“Ensure their home is warm and they have everything they need to manage during the cold spell.
“Picking up shopping or medicines for them during bad weather can make all the difference and could prevent them having to leave the house themselves and risk a fall.”
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