definitely, apart from the reasons given by u fr increase in blood pressure... age is a definite factor.. bcoz
when a person gets older and older the rigidity of the blood vessels in the body increases due to varius components of day to day life...so due to increase in rigidity in vessels the smooth frictionless flow of blood slowers as the rbs & wbc
cells creates friction with the walls of vessels..so pressure of blood increases due to sluggish flow of blood...
one more factor is that the valves of our heart & veins doesn't work properly at old age and tend to get fatigue
..so it blocks the free flow of blood & makes the blood pressure rise..
i hop u got ur answer..