<br />Stay connected with our free email newsletter <a href="http://www.ihealthtube.com/content/ne...​" target="_blank" rel="nofollow">http://www.ihealthtube.com/content/ne...​</a><br /><br />Help support our mission at <a href="http://www.patreon.com/ihealthtube​" target="_blank" rel="nofollow">http://www.patreon.com/ihealthtube​</a><br /><br />The flu shot's effectiveness varies from year to year. But Dr. Suzanne Humphries explains what that shot is really doing to your immune health after you get it and if you get it every year. What that shot could do down the road is surprising!<br />