click on profile in page header.
Then on the left side of page click Look Layout Andpreferences
you will get the following which I have found is best for me. but you can see all the things you can do or not like notifycations etc.
DONT FORGET TO CLICK the Change Profile Button after you have ticked or unticked options available that you want.
Word of WARNING! Only change one thing at a time then if you get an effect you do not want you can revert by comming back here. And when thats sorted change something else.