Connection: Gut microbiota and Immune System
The relationship between our gut microbiota and immune system starts early on in life. In fact, it starts as soon as a baby is born. This is because while the baby is inside the womb, their digestive system is sterile, which means there are no microorganisms present inside.
But once a baby is born, bacteria from the mother, as well as from the environment start to colonize and grow the digestive tract. This is how the gut microbiota starts to develop.
As we grow older, we get more and more exposed to different types of bacteria from our environment. Though, the biggest contributor to this is from the food that we eat. This is the reason why eating probiotic foods is good for our health.
As our gut microbiota develops, our immune system also becomes develops alongside it. In fact, some scientists have found that intestinal bacteria can send signals to immune cells to trigger an immune response.
Through this, the gut microbiota helps the immune system develop and know when to respond to foreign invaders. This means that having a healthy and well-developed gut flora can help strengthen a person’s immune system.
When something happens to the gut microbiota, such as when a person takes antibiotics, it can affect their immunity. The reason behind this is that the antibiotics kill off both good and bad bacteria, which means that the population of good bacteria in the gut can be affected.