HealthUnlocked have made some improvements to the site and fixed a frustrating bug that stopped those using iOS9 from uploading images.
1) It is easy to inadvertently find yourself following a community when you were just interested in reading a post made to that community (or perhaps you joined to read a locked post). Unfollowing that community (so you no longer get email alerts or updates in your Newsfeed from that community) required you to edit your profile and unselect unwanted communities in the 'My Communities' section of your profile. You can still do that (and if you want to unfollow more that one community, it's the fastest way to do it), but now you can easily unfollow a community from the community's home page. Just go to the 'My Communities' menu item on the green menu bar, select the community you want to unfollow, then find and unselect the '(green tick) Following' button which you can see in the bottom right of the community's banner. It's just to the left of the 'Write a Post' button.
2) I expect you are familiar with red dot that appears in the bell symbol in the green menu bar, which highlights activity on followed posts and the number of likes, replies and new followers you have. That dot now appears immediately (or the number increments immediately) whenever any of those events occur.
3) Apple iOS9 users wishing to share photos can now do so without difficulty!
Photo: Fisherman about to try his luck in an unusually calm Southern Ocean at sunset