BuddyPress.org

I would like to add an author’s Biographical Info to the Buddypress profile page.
I would like to add the info to the child-theme/members/single/member-header.php file (at least that is where I think it should be).
So far all I tried did not work …

I use the Suffusion theme that includes a BuddyPress pack.

I found some code here which I can add to that page that returns the “description” for a nominated user, but I need to amend the code so it automatically returns the “description” for the particular member.
The first line of that code is
`$user_id = 9;`
but I need the $user_id to refer to the relevant member of the profile page.
Somehow the member-header.php file knows which member’s details to display, but I have no idea how to do the same.

Here is one of my member profile pages where I’d like to add the “description” field:
http://wizztravel.com/list/bookhinterland/