Patients with #hypothyroidism, even when treated with levothyroxine (L-T4), face increased risk of #dementia and #fatality. Fortunately, the risk can be lowered again by a combination therapy with L-T4 and L-T3, as shown by a recent study.

https://pubmed.ncbi.nlm.nih.gov/40579157/

https://doi.org/10.1210/clinem/dgaf367