Healthy habits make your brain age more slowly https://academic.oup.com/braincomms/article/7/5/fcaf344/8251081 study finds https://news.ufl.edu/2025/09/brain-aging/ MRI data now show for the first time how young or old a brain actually works https://www.fr.de/wissen/acht-jahre-juenger-im-kopf-diese-alltagsfaktoren-halten-das-gehirn-fit-zr-94089563.html Restful sleep is the most important thing. My smartwatches confirm this!