Sims become muscular for no reason

We addressed a report that "Sims become muscular for no reason." Sims with the "Doctrine of Vitality" are intended to gain muscle over time. We've updated the text to become clearer for this intended behavior.

Fixed in Patch 1.125.59/2.35

Please create a new thread if you're still experiencing issues

This keeps happening to me... I keep on having to go into CAS and changing it.

Since yesterday's patch, my sims get instantly muscular when they do sport. I've tried with a new save free of mods and CC but after playing an hour (real time) almost every sim in the world built up muscle and their muscle sliders were at the maximum. 
It even happened after a sword training session of one hour (in-game time) while I had the sim's muscle slider at minumum, an hour later my sim was all built up.

Hey everyone,

Thanks for hanging in there while we were investigating this report.

Sims with the "Doctrine of Vitality" are intended to gain muscle over time. We've updated the text to become clearer for this intended behavior in a future update. However, this is working as designed.

I opened my game after the latest update and several of my sims from different families are maxed out on the muscle mass slider, ie: extremely shredded 😂

None of these sims own a gym and are of lower muscle mass on the slider so it's very odd of them to have gained so much weight this quickly.

I believe this may be a bug as it's happened to quite a few sims. 

Hopefully this can be investigated,  I'm not sure what else to add here to help!

Well done. I have this problem and the vitality decree is the only thing I had added. Thank you for pointing it out.

Hi squiddsimss​ 

there's currently two threads for this.

Did they practice sword fighting ?

My sims keep gaining muscle without working out or anything. No mods, no fitness skill, no mastery perks. I've gone into CAS to decrease their muscle and it just keeps coming back. It's out of character for my princesses and grand duchess to be absolutely ripped.

All my adult female sims are gaining max muscle when I leave to play another household and then come back, I have put them back to normal every time but it keeps doing it again. It has only started recently after I got the new expansion pack.

Hello all,

If any of you are still encountering this on the latest game version (without mods), would you be willing to share your save file(s)?

If so, please send me a private message with a link to the file. Instructions can be found here: https://forums.ea.com/idea/the-sims-4-bug-reports-en/information-how-to-send-user-files-to-the-sims-4-team/5048472

Thanks!