Not sure what "more" you can do, I think it looks pretty good, but maybe write some more articles and attempt to get some traffic there?
given the fact that you have a Blogger blog, there's not much you can do to improve the visual aspect of it. you can always try to search google for some cool health-related plugins and install them in your layout. other than that what can i say? add more content, include images and videos, try to include polls too and ways to give people a chance to interact with your website.