You can change your account settings by clicking on the Account link on the side menu.
The Account page has a series of sub-pages. You can access them in two ways, by using the left hand menu link
The subpages are as follows:
Account – Change your profile picture using a gravatar account (default) or uploading a picture, change your email address, display name, timezone, and date format
Picture – Either change your photo using a gravatar account, or simply by dragging one into the upload box provided or browsing to it
Password – change your password
Notifications – set the frequency of emails you wish to receive
Login history – this shows details of your login history, with dates, times, your location, and status. Note: no one can see these details except you.