Collect health and fitness data on iPod touch
The Health app 
can track your daily footsteps and the flights of stairs you climb. You can manually add other data like body weight and caffeine intake, and track additional data with other apps (such as nutrition and fitness apps) and devices that are compatible with Health (such as Apple Watch, AirPods, weight scales, and blood pressure monitors).
Manually update your health profile
When you first open Health, you’re asked to set up a health profile with basic information such as your date of birth and sex. If you don’t supply all of the requested information, you can update your profile later.
Tap your profile picture at the top right of the Summary screen.
If you don’t see your profile picture, tap Summary at the lower left.
Tap Health Profile, then tap Edit.
Tap a field, make a change, then tap Done.
Manually add data to a health category
Tap Browse at the bottom right to display the Health Categories screen, then do one of the following:
Tap a category. (To see all categories, scroll down.)
Tap the search field, then type the name of a category (such as body measurements) or a specific type of data (such as weight).
If you don’t see the Health Categories screen, tap Browse again at the bottom right.
Tap
for the data you want to update.Tap Add Data at the top-right corner of the screen.
Add your information, then tap Add or Done in the top-right corner of the screen.
Collect data from other sources
From headphones: After you connect EarPods, AirPods, and other compatible headphones to your iPod touch, the headphones’ audio levels are automatically sent from iPod touch to Health.
From an app that you download from the App Store: As you set up the app, allow it to share data with Health.
From another device: Follow the setup instructions for the device.
If it’s a Bluetooth device, you need to pair it with iPod touch. Follow the instructions that came with the device to put it in discovery mode, go to Settings
> Bluetooth, turn on Bluetooth, then tap the name of the device.
WARNING: iPod touch isn’t a medical device. See Important safety information for iPod touch.