If you are interested (and very brave, there are risks here), apparently there is a SARM that can help your mitochondria grow back. It's called Stenabolic SR9009. I have never tried it (because I have no need), but I'd be interested in what you think about it. You can find information on it online, I don't want to post anything because I am not qualified to vet the information -- information is all over the web however.
Here is a link to another nature article on it: https://www.nature.com/articles/d41586-018-03267-5
I just thought mitochondrial damage was a strange framing.
Thanks.
Edit: The article does talk about mitochondrial damage, though it didn't appear at first glance to address this. It's towards the end of the article.