Re: Astra zeneca and EU ??
Originally Posted by
Percy Vere
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With all due respect to you OGF, heart attacks can be caused by reasons other than blood clots. This is what the Mayo Clinic's website has to say:
A heart attack occurs when the flow of blood to the heart is blocked. The blockage is most often a build-up of fat, cholesterol and other substances, which form a plaque in the arteries that feed the heart (coronary arteries).
Sometimes, a plaque can rupture and form a clot that blocks blood flow. The interrupted blood flow can damage or destroy part of the heart muscle.
Link ->
https://www.mayoclinic.org/diseases-...s/syc-20373106
I must apologise for my response Percy, but it was late when I read your post, and time and tiredness prevented me from offering a suitable reply.....
The plaques that collect on the walls of arteries provide the right conditions to precipitate a heart attack (myocardial infarction) but it's a blood clot that ultimately causes the blockage. The description you and the Mayo clinic have provided is only a very brief chapter in a very long book.....And as with most news items and google information, it's the things that are left out that are most important......
It's going off subject, but I felt you deserved an appropriate reply Percy...
Cholesterol is good! but it's been called out as the bad boy for obvious reasons. LDL and Triglycerides are sticky substances that adhere to artery walls restricting the flow of blood through the artery. They are not directly responsible for a heart attack, the plaques are more associated with 'Angina' which reduces the efficiency of the heart to deliver oxygen to the muscles and makes it very difficult to run, climb stairs, or other strenuous exercise.....But they don't block the artery completely, they cause inflammation in the artery wall, which cracks and bleeds. When the blood causing the bleed clots, it then blocks the restricted artery and this is a heart attack.
The first thing the paramedics will do upon their arrival on the scene will be to administer two large doses of aspirin to thin the blood and dissolve the blockage. Aspirin would be no use if the blockage was caused by plaque. The second thing they do is to administer adrenalin to dilate the arteries.
Cholesterol is used by the body to repair damage to the muscles following strenuous exercise, it also has numerous other jobs to attend to, including some jobs concerning the immune system....But I digress....High cholesterol is not the problem. Too much LDL and not enough HDL is the problem. The HDL wraps itself around molecules of LDL and prevents it from being sticky and adhering to artery walls. So the overall readings obtained from a cholesterol test are meaningless without a breakdown of LDL, HDL and other lipids, namely triglycerides.
A high reading of HDL would be very good, but would push up the overall reading above what is considered a safe level.....
There are other causes of heart attacks, stress, bad diet, high blood pressure and some bacterial infections can cause the arteries to be inflamed, which ultimately leads to cracking and bleeding from the artery wall, hence a heart attack. One of the most important things to do post heart attack, is to keep blood pressure down and reduce the amount of platelets in the blood to prevent further clotting. This can be done by taking a low dose aspirin daily (as I do) or warfarin to thin the blood, but more modern anticoagulants are now available. Statins will lower
all cholesterol, good and bad, and can cause muscle damage and joint pain, and as a runner I refuse to take statins, but it is a personal thing and should be based on individual circumstances, and most certainly after a doctors advice. This is also one of the reasons I have declined the vaccine.