"Tryptophan is among the nine amino acids our body can't make and we must consume in foods like turkey and soybeans so we can perform essentials like making pro

"Tryptophan is among the nine amino acids our body can't make and we must consume in foods like turkey and soybeans so we can perform essentials like making protein. The researchers also think the fuel sends signals to cells, ones that aging stem cells apparently don't get." https://scienmag.com/major-research-initiative-explores-how-our-bones-and-muscles-age-new-ways-to-block-their-decline/ https://scienmag.com/major-research-initiative-explores-how-...