The idea that bacteria can be beneficial for our body can be difficult for someone to assimilate. Especially in this period, where we are increasingly pushed to take antibiotics, sterilize surfaces and hands with antibacterial gels and lotions, wear masks, etc. The truth is that there are millions of bacteria in our bodies, even more than our own cells. It is therefore necessary to make a distinction without generalizing, since if it is undeniable that some bacteria can create serious problems for us, some of them that we will…