How to delete the occupied memory with the health software in Apple's mobile phone?

The health software in Apple's mobile phone is deleted to occupy memory: find the number of steps and walking+running distance, and turn it off in the chart summary display.

The specific operation is as follows:

1. Under the main menu page, open "Health".

2. Click "All"

3. Enter "Step" and turn off "Show in Chart Summary"

4. Enter "Walking+Running Distance" to close "Chart Summary Display".