How can a decrease in the elasticity of the walls of the aorta and artery affect blood flow and heart function?

Poor elasticity – either: a – poor change in diameter (larger diameter) and low pressure – the heart works harder so that blood can flow in the same rhythm, the work of the heart compensates for poor blood flow, as a result, left-sided heart failure develops) b – poor change in diameter (diameter is smaller) and increased pressure, there is a load of blood on the vessels as a whole, because of the work of the heart and rapid blood flow, the vessels suffer, although the blood moves quickly, the result is vegetative dystonia, as a rule, headaches, etc.