This collection is all about nature as medicine.  GREEN Medicine.  We do NOT need Big Pharma poisoning us as they "treat" us.  Everything we need to stay well and to treat medical issues can be found in nature.  We've had THOUSANDS upon THOUSANDS of years of compiling data, through trial and error.... and for the most part, when it's been written for centuries that something works, it does.  But everyone is different, and just like with "Pharma", it's always still some trial and error with each individual. So, start low and slow with any new herbal remedy, do your research, and don't mix strong herbs with anything from the drug store!!!