Thank you Hamid Reza Samadifard .

Hello, how did you come up with this assumption (70%)?

Through a thesis and many scientific reports Ahmed Al-Imam .

Can you provide a reference?

I'm sorry. I do not have an electronic version of the thesis. Regards Ahmed Al-Imam

Although unknown reasons do pertain to atherosclerosis in a significant number of subjects / patients , I am not aware of any well designed epidemiological studies that have quantified the atherosclerosis occurrence to.be around 70%.due to unknown causes. Also , I feel that a proper designing of such an epidemiological study would be foolproof.

Article Epidemiology of Atherosclerosis and the Potential to Reduce ...

This paper may give some updates on the state of affair.

Thank you Lalit Mohan Srivastava for sharing your opinion.

Many thanks s. Béatrice Marianne Ewalds-Kvist .

Nice and thanks Dr. Amal Majeed for your positive comments.

Dear Amal Saadoon Majeed, may I suggest that you produce an English abstract of your thesis, maybe enhanced with some results?

Dear Rudolf Pfister the thesis isn't mine. It is belong to my colleague Dr. Dina. Unfortunately, I do not have an electronic version of the thesis, but I will try to get the printed version.

I'm very happy for your effective contribution Lalit Mohan Srivastava in this discussion. Best Regards

Majority of the time established conventional risk factor are responsible ,newer risk factors and extended risk factors also contribute for the atherosclerosis.In few genetics play a role.Induvidual suasceptibility to these varies greatly.

I appreciate your contribution Chakrapani Seshachar . Many thanks

welcome Amal Saadoon Majeed

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Thank you Hamid Reza Samadifard .

In continuation to all that talked about by our colleagues pertaining to this.aspect, I wish to point out that in addition to various risk factors leading to Cardiovascular disease, we certainly do not know the exact trigger that happens in seconds leading to Infarction and according to me this explains unknown causes in more than 70%cases.

High blood pressure, which causes arteries to weaken in certain parts, making them more likely to allow cholesterol and other substances to build up on their inner lining. High cholesterol levels; in fact, cholesterol is a waxy substance manufactured by the body, but it is found in many foods eaten by human, and therefore, the high level of cholesterol in the blood of the human natural causes the blockage or clogged arteries, and this hinders the flow of blood to the heart And other body organs. As you age, it becomes harder for your cardiovascular system to pump and receive blood.This makes your arteries weak and less flexible than they were before, making the inner layer more susceptible to plaque buildup. Resistance to insulin or diabetes. overweight. Smoking and the use of tobacco in its various forms. High triglyceride levels in the blood. The presence of inflammation in the body, such as when suffering from chronic diseases that cause inflammation such as arthritis, lupus, and infections are not known.

I appreciate your contribution Lalit Mohan Srivastava . Many thanks

Thank you very much for your valuable contribution Ali mohamed rashed .

I think that the main cause of atherosclerosis is the high level of cholesterol and triglycerides in the blood and this is known and personalized this leads to high level of oxidized low density lipoproteins

I agree with you Dr Shakir Tuleab . Many thanks

It is well known, and the reasons are triglycerides and other fats and diseases.

Many thanks Jasim Hassen .