On gusty days, there’s an ill wind blowing for your heart

WINDY days could be deadly for people who are at risk of heart attacks, research suggests.

Although the cold is known to affect cardiovascular health, increasing heart rates and blood pressure, a new study focused on other weather phenomena, such as gales.

Researchers from Lund University in Sweden cross-referenced 274,000 heart-attack patients with the weather on the day they went to hospital between 1998 and 2013 and discovered that when wind speeds hit 36mph (a “near gale”), the number of heart attacks rose by seven per cent.

Near gale conditions are defined as when white foam begins to be blown from waves and walking is more difficult.

When the temperature fell to freezing – 32F (0C) – the number of heart attacks increased by 14 per cent. For dismal, gloomy days the risk rose by 13 per cent.

Prof David Erlinge, head of cardiology at Lund University, said although it was unclear why the wind caused problems, those at risk of heart attacks should consider staying indoors.

“We don’t really know whether staying in during cold and windy days reduces the risk of myocardial infarction,” he said. “However, we do think that it is reasonable if you are at risk. Therefore we advise to dress appropriately when going outside on cold days or maybe move to a warmer climate.”

Research previously suggested that the cold could effect changes in the blood which would put people at risk of developing clots, and increase the risk of a heart attack or a stroke. It may also cause plaque stuck on artery walls to shed, also increasing the chances of a deadly clot.

People might also change their routines in bad weather, such as reducing exercise or eating more calorific foods, and that could also increase the risks.

The research was published in JAMA Cardiology.