When it comes to anxiety and its affect on your health there is more assumption and myth than you could imagine. Some of these myths are based in fact, but of course they're not entirely accurate. And, although there is a connection between anxiety and blood pressure, that connection has been overblown somewhat. See, anxiety can increase your blood pressure but it doesn't do so over long periods of time. In other words, when you feel stressed and anxious your blood pressure does go up as your bloodstream is injected with stress