One real life thing I struggle with on a daily basis is severe depression. I am fairly certain that the chief cause of this depression is physical which is why I have been researching it as best I can and taking action (without the use of antidepressants) to do what is necessary to combat it. And one of the best ways to do this is to boost serotonin. Serotonin is the happiness chemical. It elevates our mood and gives us energy. It is derived from the amino acid tryptophan and it is the ...