How to delete ios8 system health data?

1. After opening the Health application, click the health data to be deleted. Here is an example of deleting my steps.

2. Then, in the detailed setting interface of the step, please click the column of "Show all data".

3. Then the data of all the current steps will be displayed, and click the "Edit" button in the upper right corner to continue.

4. If you want to delete a piece of data, you can first click the "minus sign" icon on the left side of the data column.

5. Then click "Delete" button to delete it.

6. If you want to delete all the data, please click the "Clear All" option in the upper left corner.

7. Finally, click the "Delete All" button at the bottom to delete all data in the current project.

8. If you want to delete more health data, you can do the same.

The answer is not easy, I hope I can help you, please help me adopt it if you are satisfied, thank you!