I don't think there are many relevant ads about blood pressure, but i may be wrong...Check with an US IP to be sure
Health topics are generally good in terms of adsense revenues, you have many other topics paying way less!
I would say thats a good niche to target, even if its not blood pressure related it would be health related,..which is a high paying niche...
It's true, but if you do a website where people can ask questions you'll have quite a lot of content because posts are quite large when people are describing their symptoms or describing their medical experiences.
health sites are mostly paying good but it's very difficult to get clicks on those types of web sites
Well, thanks for all the inputs. I did a small research using Wordtracker, overture and keyword discovery...My final analysis on these health topics is that though there is huge competition with government sites, big health portals and hospital sites, the potential is immense.. I guess, it will take a little more than just adsense...I have found my topic, will keep posted about the progress