diff --git a/lib/services/memories_service.dart b/lib/services/memories_service.dart
index 5a9486c57..01d57b8a7 100644
--- a/lib/services/memories_service.dart
+++ b/lib/services/memories_service.dart
@@ -26,7 +26,8 @@ class MemoriesService extends ChangeNotifier {
     addListener(() {
       _cachedMemories = null;
     });
-    //
+    // Clear memory after a delay, in async manner.
+    // Intention of delay is to give more CPU cycles to other tasks
     Future.delayed(const Duration(seconds: 5), () {
       _memoriesDB.clearMemoriesSeenBeforeTime(
           DateTime.now().microsecondsSinceEpoch - (7 * kMicroSecondsInDay));