In the US, they want to open a bank of faeces.

American doctors want to create a bank of stool samples for the treatment of intestinal diseases using fecal microbiota transplantation. Scientists believe that this procedure in the future will also help rejuvenate the body and treat asthma, multiple sclerosis, obesity and diabetes. In a feces bank, people will be able to store their excrement in anticipation of scientific breakthroughs in medicine. Samples can be taken in youth and used in old age.