A. 1. Open the Hume Health app on your iPhone. 2. Go to the 'Settings' section within the app. 3. Look for an option that says 'Sync with Apple Health' or 'Health Data'. 4. Ensure that the toggle is turned on. 5. If it is already on, try toggling it off and then back on. 6. Next, open the Apple Health app. 7. Tap on your profile picture in the top right corner. 8. Scroll down to 'Apps' and select Hume Health. 9. Make sure all relevant data types (like weight, body fat, etc.) are enabled for sharing. 10. Restart both apps and check if the sync works now.

B. 1. If the above steps do not work, try uninstalling and reinstalling the Hume Health app. 2. After reinstalling, repeat the sync setup process. 3. Ensure that your iPhone is updated to the latest iOS version, as compatibility issues can sometimes cause syncing problems.