Doctors have been wondering for decades how it is possible that thick blood can both cause and prevent blood clots – which may result in a heart attack – and new research may have found the explanation.

Working with mice models, scientists from Heidelberg University Hospital in Germany, found that animals with elevated blood fat levels and a genetic defect that leads to an increase in blood clotting developed larger plaques, but the plaques were more stable. Moreover, the walls of their blood vessels appeared to expand to adjust to the condition.

However, the long-term use of anticoagulants such as heparin reversed these advantages in that it led to smaller plaques formations, but the stability was lost and the risk of dangerous clotting increased.

The researches therefore advise doctors to carefully consider the advantages and disadvantages of administering anticoagulants, as risks may outweigh the benefits.

Those who are looking for natural ways of lowering their risk of a heart attack should consider getting regular exercise, following a plant-based diet such as the alkaline diet, and taking nutritional supplements with fish oil which is rich in omega-3 fatty acids.