Cold weather warning: Winter temperatures could increase your risk of a heart attack
UK weather: Met Office forecasts snow and cold temperatures
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A research paper published in JAMA Cardiology analysed data from 274,000 people living in Sweden; it found that the risk of having a heart attack was greatest on days where the temperature was below freezing. This late winter, across Britain, the temperature is dipping below freezing as snow falls, ponds freeze over and icicles form on tree branches. Another study, published in PLOS One, found that there is a 31 percent increase in heart attack cases in winter compared to the warmest months of the year.
The British Heart Foundation (BHF) added that in winter “blood vessels constrict”.
This is so that the heart can “concentrate on pumping blood to your brain and other major organs”.
The charity said: “The cold can also increase the risk of developing blood clots, which could lead to a heart attack or stroke.”
Blood clots
The NHS explained blood clots, also known as deep vein thrombosis (DVT) “can be very serious and need to be treated quickly”.
Symptoms of a blood clot
- Throbbing or cramping pain, swelling, redness and warmth in a leg or arm
- Sudden breathlessness, sharp chest pain (may be worse when you breathe in)
- A cough or coughing up blood
Any symptoms of the life-threatening condition requires you to call NHS 111.
DVT typically occurs in a vein in the leg, which can lead to cramping pain, swelling and warm skin around the painful area.
People more at risk of a DVT:
- Are over 60
- Are overweight
- Smoke
- Have had DVT before
- Take the contraceptive pill or HRT
- Have cancer or heart failure
- Have varicose veins
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The NHS advises people to stay a healthy weight, to stay active, and to drink plenty of fluids to help prevent DVT.
It’s advised not to sit for long periods of time, instead you need to get up and move around every hour to so.
The national health body added that it’s not good practise to cross your legs while sitting, as this can restrict blood flow.
In addition, it’s crucial not to smoke or drink lots of alcohol said the medical professional body.
As the cold weather can increase a person’s risk of blood clots, a heart attack or stroke, it makes sense to keep warm this winter.
The BHF advised to take advantage of hot water bottles and blankets while indoors.
In addition, wearing “a few thin layers can help keep you warmer than one thick layer”.
It’s also important to stay active indoors and move around often to prevent any chills.
Moreover, having regular hot meals and drinks can “give your body the energy it needs to keep warm”.
The charity added that it’s helpful to wear scarves, hats and gloves when venturing outside.
For anyone suffering from angina (i.e. chest pain), it’s a good idea to wear a scarf loosely around your mouth and nose.
This is to help you breathe in warmer air which may help to limit symptoms of the condition.
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