Comment by emersonrsantos

The current facts about coffee and sugar are the following: drinking coffee is good for your mental and physical, while sugar is linked to depression, addiction, anxiety, heart problems, obesity and not surprisingly, PTSD:

https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4522929/ https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4086302/ https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5056806/