IOS14 Health app battery drain is significant
Updated to IOS14 and the battery drain from the health app is really significant. The last 24 hours it show 43% battery drain. Apple you need to fix this asap.
iPhone 11 Pro Max
I had the same problem 80 something percent battery drain by health app, factory reset and restoring to a pre update backup worked for me. It seems to be the new sleep tracking feature which I did not set up again once restored from backup, since then battery life has returned to normal.