Please also keep in mind that there are many other useful substances
not listed above. For example, every day I have a "green drink," an
herbal preparation containing numerous tonic substances like ginseng
and also various forms of algae and chlorophyll extracts. My green
drink makes my body feel very peppy all day, so it certainly
enhances my life and may extend it. It costs about $25,00 a month to
enjoy that. I also use various pure amino acids at times.
Phenylalyanine will make me get more aggressive whenever I am
feeling a little lackluster; this nutrient has also been used as an
effective therapy against depression. Melatonin taken at bedtime
really does help me get to sleep and may have remarkable
life-extending properties. Other amino acids help my body
manufacture growth hormones and I use them from the time I begin
training seriously in spring through the end of the summer triathlon
competition season. Pearson and Shaw's book (see Bibliography) is a
good starting point to begin learning about this remarkably useful
subject.