I had high blood pressure and was on medication for about 10 years.(I'm 51) Last year I got really sick and had to have a heart valve replacement. At that point, my blood pressure got really low and I was dizzy and light headed all the time. Since then, my blood pressure has been perfect. I think the reason for that, is I gave up hard alcohol. My cholesterol and triglycerides have also come way down. I still enjoy a few beers now and then but that doesn't seem to affect me like the hard alcohol does. As far as TOS affecting my blood pressure, I'm not really sure about that.