Update app.py

app.py

@@ -42,7 +42,7 @@ def submit_questionnaire(name, age, location, gender, ethnicity, height, weight,
 # Function to handle chat
 def chat(user_input, messages):
     if user_input:
-        # Prepare messages for the API call
+        # Append user message to the conversation history
         messages.append({"role": "user", "content": user_input})
 
         try: