diff --git a/CppCoreGuidelines.md b/CppCoreGuidelines.md
index 3dade11..4c0ecb5 100644
--- a/CppCoreGuidelines.md
+++ b/CppCoreGuidelines.md
@@ -7212,11 +7212,18 @@ This will copy each elements of `vs` into `s`. Better
 <a name="Res-for-init"></a>
 ### ES.74: Prefer to declare a loop variable in the initializer part of as `for`-statement
 
-**Reason**: ???
+**Reason**: 1) By creating variables inside loops, you ensure their scope is restricted to inside the loop. It
+		       cannot be referenced nor called outside of the loop.
+	    2) some dedicated optimization can be performed more efficiently by the compiler (most importantly
+		register allocation), since it knows that the variable cannot be used outside of the loop. For
+		example, no need to store the result for later re-use.
 
 **Example**:
 
-	???
+	for (int counter = 0; counter <= 10; counter++)
+	{
+	 	cout << counter << endl ;
+    }
 
 **Enforcement**: ???