Why do heart attacks happen at night?

Answered by 1 Apollo Doctors

Dr Ranjith Darla

General Practitioner

MBBS
3+ Yrs

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Researchers found that at around 6:30 a.m. the circadian system sends out an increased amount of PAI-1 cells which blocks blood clots from breaking down. The more PAI-1 cells in the blood, the higher the risk for a blood clot that leads to a heart attack

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Answered 04/07/2025

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I'm experiencing some issues that are really concerning me. I have chest pain, shortness of breath, palpitations, and sometimes I feel really drowsy. I've tried sticking out my tongue, but I've had X-rays, echocardiograms, and TMT tests, and they all came back normal. The weirdest part is that these symptoms usually hit me at midnight when I'm sleeping. I'm worried because it keeps happening. Could you help me understand what might be going on?

it might be because of anxiety , reduce stress levels

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I'm really concerned because my last BP reading was 160100, and I can't seem to book a doctor's appointment soon. Can anyone suggest what I should do next or if there's any medication I could consider in the meantime? Any advice would be really appreciated.

you can start taking Amlodipine (brand name: Norvasc) 5mg once daily. Additionally, you can also consider adding Hydrochlorothiazide (brand name: Microzide) 12.5mg once daily. It is important to monitor your blood pressure regularly and make lifestyle changes such as reducing salt intake, exercising regularly, and maintaining a healthy weight.

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Can a heart stent be taken out without needing bypass surgery I'm a bit worried about this and want to understand if it's possible or what the options are

Once a stent is placed, it isn‚Äôt usually removed; bypass is only considered if stent fails or blockage recurs.

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Why do heart attacks happen at night?

Researchers found that at around 6:30 a.m. the circadian system sends out an increased amount of PAI-1 cells which blocks blood clots from breaking down. The more PAI-1 cells in the blood, the higher the risk for a blood clot that leads to a heart attack

More Cardiology Health Queries

I'm really concerned because my last BP reading was 160100, and I can't seem to book a doctor's appointment soon. Can anyone suggest what I should do next or if there's any medication I could consider in the meantime? Any advice would be really appreciated.

Can a heart stent be taken out without needing bypass surgery I'm a bit worried about this and want to understand if it's possible or what the options are

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