Health app draining battery on iOS14

I’m glad I found this thread and that I wasn’t alone. Depleting battery, hot phone, unable to delete apps, Apple Watch not syncing and any app related to health constantly crashing.

I’d already noticed that Health app was always at the top of battery usage, but I hadn’t quite clocked how much storage it claimed to be taking up.

14.2PB.

PB. Not MB. Not GB. Not TB. I had to Google what on Earth a PB was. A Petabyte.

Nothing I tried helped other than to back-up and perform a fresh install having disabled syncing of Health app. That is how I spent my Sunday morning, but it seems to have worked. No more battery drain, Apple Watch syncing and Health app behaving itself.