Summary:

- Microbes, or tiny living organisms, are not always harmful to humans. In fact, many microbes play important roles in keeping us healthy.

- Scientists have discovered that certain microbes, known as "invisible friends," live in our bodies and help support our immune system, digest food, and even produce important vitamins.

- These beneficial microbes, which are part of the human microbiome, live in our gut, skin, and other parts of the body. Maintaining a healthy balance of these microbes is crucial for our overall well-being.