An association was also found  between  heart  disease  and  exposure  to  compounds  which  are  no  longer  permitted  in certain  work  environments,  such  as  phenoxy acids containing TCDD(dioxin) or asbestos.Workplace exposure to silica dust or asbestos is also associated with pulmonary heart disease. There is evidence that workplace  exposure to lead, carbon disulphide, phenoxyacids containing  TCDD, as well as working in an environment where aluminum is being electrolytically produced, is associated with stroke. Somatic mutations
As of 2017, evidence suggests that certain leukemia-associated mutations in blood cells may also lead to increased risk of cardiovascular disease. Several large-scale research projects looking at human genetic data have found a robust link between the presence of these mutations, a condition known as clonal hematopoiesis, and cardiovascular disease-related incidents and mortality. Radiation therapy
Radiation treatments for cancer can increase the risk of heart disease and death, as observed in breast cancer therapy. Therapeutic radiation increases the risk of a subsequent heart attack or stroke by 1.5 to 4 times; the increase depends on the dose strength, volume, and location. Side-effects from radiation therapy for cardiovascular diseases have been termed radiation-induced heart disease or radiation-induced vascular disease. Symptoms are dose-dependent and include cardiomyopathy, myocardial fibrosis, valvular heart disease, coronary artery disease, heart arrhythmia and peripheral artery disease. Radiation-induced fibrosis, vascular cell damage and oxidative stress can lead to these and other late side-effect symptoms.
The benefit from replacement with polyunsaturated fats appears greatest,  while replacement of saturated fats with carbohydrates does not appear to have a beneficial effect. A diet high in trans fatty acids is associated with higher rates of cardiovascular disease, and in 2015 the Food and Drug Administration (FDA) determined that there was no longer a consensus among qualified experts that partially hydrogenated oils (PHOs), which are the primary dietary source of industrially produced trans fatty acids (IP-TFA), are generally recognized as safe (GRAS) for any use in human food. There is conflicting evidence concerning whether dietary supplements of omega-3 fatty acids (a type of polysaturated fat in oily fish) added to diet improve cardiovascular risk.The benefits of recommending a low-salt diet in people with high or normal blood pressure are not clear. In those with heart failure, after one study was left out, the rest of the trials show a trend to benefit. Another review of dietary salt concluded that there is strong evidence that high dietary salt intake increases blood pressure and worsens hypertension, and that it increases the number of cardiovascular disease events; both as a result of the increased blood pressure and probably through other mechanisms. Moderate evidence was found that high salt intake increases cardiovascular mortality; and some evidence was found for an increase in overall mortality, strokes, and left ventricular hypertrophy. Intermittent fasting
Overall, the current body of scientific evidence is uncertain on whether intermittent fasting could prevent cardiovascular disease.