One of the most important things we have to deal with in this decade is the medical profession's love affair with low cholesterol. There is much to be debated about what healthy cholesterol levels should be but one of the really important things has to do with mental health. There are several articles and papers from major medical journals but lots can be found online such as this
https://www.medicalnewstoday.com/articles/138557.php
Beware of low cholesterol for more reasons than mental health but, enough for now...