Quando il caldo aumenta, aumentano anche i rischi per il cuore: Cosa devi sapere
Revisione paritaria di Dr Colin Tidy, MRCGPAuthored by Lawrence HigginsPubblicato originariamente 8 Lug 2025
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Le ondate di calore e le alte temperature comportano rischi per la salute. L'American Heart Association (AHA) ha emesso avvertimenti sull'importanza di prendere precauzioni extra per rimanere al sicuro in caso di alte temperature. Scopri come aiutarti a rimanere fresco e in salute qui.
In questo articolo:
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Can you die from the heat?
The AHA suggests extreme heat can be dangerous - even deadly - especially for people with existing heart disease. According to the UK Health Security Agency 10,000 people died due to heat related causes between 2020 and 2024 in the UK.
A study published in the AHA’s, peer-reviewed journal Circulation predicts that cardiovascular disease deaths related to extreme heat may more than double over the next two decades.
Heart medicines and the heat
Torna ai contenutiHeat and dehydration make your heart work harder, putting it under significant stress. This can be particularly problematic for those with heart conditions and older adults.
Certain heart medicines can exaggerate the body’s response to heat, these include:
Ace receptor blockers and inhibitors.
Calcium channel blockers.
If you have been prescribed these medicines, the AHA says you should take extra precautions during heat waves but continue to take your medicines unless told otherwise by your healthcare professional.
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Precautions to take during the hot days of summer
Torna ai contenutiThere are various measures you can take to help your heart stay safer in the high temperatures - these include:
Watching the clock - it’s best to avoid the outdoors in the early afternoon, around noon to 3 pm, because the sun is usually at its strongest, putting you at higher risk of heat-related illnesses.
Dressing for the heat - wear lightweight, light-coloured clothing in breathable fabrics such as cotton, or a newer fabric that repels sweat.
Mantenersi idratati - drinking a few cups of water before, during, and after going outside or exercising. Avoid caffeinated or alcoholic drinks.
Take regular breaks - find some shade or a cool place, stop for a few minutes, hydrate and start again.
Symptoms of heat exhaustion
Torna ai contenutiIt’s important to know the signs and symptoms when you may be having too much heat.
The main symptoms of heat exhaustion are:
Mal di testa.
Cool, pale, and moist skin.
Fast, weak pulse.
Dizziness and light-headedness.
Weakness or muscle cramps.
Feeling sick and vomiting.
Passing out.
If you have these symptoms, move to a cooler place, stop exercising, and cool down immediately by dousing yourself with cold water and rehydrating. You may need to seek medical attention.
Symptoms of heat stroke
Heat stroke is a medical emergency. if you experience these symptoms call 999 in the UK or 9-1-1 in the US for an ambulance straight away. The symptoms of heat stroke include:
High body temperature - 40C or higher.
Hot, red, dry, or damp skin.
Fast, strong pulse.
Headache, dizziness, and confusion.
Nausea.
Passing out.
While being heart-smart in the heat, it’s still important to find ways for the whole family to stay active even during the high temperatures of summer. Adjusting your activity time to early morning or later in the evening can help. If being outside is too much on some days, find indoor locations where you can be active, such as a shopping centre, gym, or community leisure centre.
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About the authorView full bio
Lawrence Higgins
Managing editor
BSc, Post Graduate Diploma
As managing editor of Patient.info Lawrence looks after all of our features and is a member of the Guild of Health Writers.
About the reviewerView full bio
Dr Colin Tidy, MRCGP
Medico di base, Autore medico
MBBS, MRCGP, MRCP (Paediatrics), DCH
Dr Colin Tidy is an NHS Doctor, based in Oxfordshire.
Storia dell'articolo
Le informazioni su questa pagina sono revisionate da clinici qualificati.
Next review due: 8 Jul 2028
8 Lug 2025 | Pubblicato originariamente
Autore:
Lawrence HigginsRevisione paritaria di
Dr Colin Tidy, MRCGP
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