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@@ -7,9 +7,17 @@ created: Saturday, April 20, 2024
 
 # Heap memory
 
-## Summary
+Along with [[Stack_memory|Stack memory]], programs make use of _heap memory_
+during runtime.
 
-- Along with [[Stack_memory|Stack memory]], programs make use of _heap memory_
-  during runtime.
+Heap memory does not use a standardised data structure and can be accessed from
+any point within the program.
 
-- [ ] ## Related notes
+Whereas stack memory with it's LIFO structure has memory management built-in
+when programs allocate memory from the heap they must manually deallocate it
+when it is no longer required. This process of "freeing memory" is known as
+_garbage collection_. In a language like C, this is the explicit concern of the
+programmer and is not abstracted away. Failure to properly manage garbage
+collection is what causes [[Memory_leaks]].
+
+## Related notes