Reddit reviews The Consumer Handbook on Tinnitus

Causes of tinnitus includ hearing loss, noise exposure, dental issues, neck issues, psychological issues, etc... so yes, blood pressure could very well be another cause. Not sure about cholesterol, but since your inner ear is full of blood and other fluid I'm sure that pressure changes could cause some tinnitus.

And no, there is no cure for tinnitus unless it is some kind of physical problem that can be corrected (like I'd mentioned - a dental issue or something like that). Hearing aids often help because they bring in sound to stimulate the ear and keep it busy.

Don't buy into "miracle cures," for sure, but lots of techniques are out there that can help manage tinnitus. The clinic that I work at has a large Tinnitus Management Program and we give out copies of this book: http://www.amazon.com/Consumer-Handbook-Tinnitus-Richard-Tyler/dp/0966182677/ref=sr_1_2?s=books&ie=UTF8&qid=1348714023&sr=1-2&keywords=tinnitus May be worth a read...