Have you ever heard the phrase, “You are what you eat?” Well, it might not be entirely wrong. Inside our bodies is a community of microorganisms called the microbiome. 

The HUMAN microbiome is the collection of microorganisms, including bacteria, viruses, and fungi, that inhabit the human body. The composition of our gut microbiome can impact different body functions, including digestion, the immune system, and even our mental health.

Our microbiome is in various body parts, including the skin, mouth, gut, and genitals. Understanding the complexities of the human microbiome has the potential to revolutionize medicine by identifying the vital role our microbiome plays in living a healthier, longer life. 


The microbiome is a vital part of our health that helps to keep us young. A study shows that the presence of good gut bacteria leads to a decrease in inflammation!

Research has linked inflammation to aging, and studies conclude that a healthy gut microbiome could help slow and manage the aging process. 

The microbiome can influence our skin health too, as beneficial gut bacteria can help the skin stay hydrated and combat acne.

Mood and Mental Health 

Researchers consider our gut as a secondary brain, since it produces neurotransmitters like serotonin and dopamine, which regulate mood and behavior.

It is well known that a balanced microbiome can support better mental health and reduce anxiety and depression.

Digestion and Immune System

A diverse and balanced microbiome is crucial for a properly functioning digestive system. The microbiome helps break down the food we eat, helps us absorb the nutrients, and also helps eliminate waste by products. 

The microbiome also plays a vital role in supporting the immune system. Gut bacteria can help stimulate the production of immune cells and prevent infection.

Changes in the Microbiome 

Several factors can alter our microbiome composition:

  • an unhealthy diet containing processed foods, and high sugar  
  • chronic stress
  • antibiotics use which can kill good bacteria and promote the growth of harmful bacteria, leading to inflammation

A poor diet, high in processed foods and sugars, can negatively impact the microbiome.

Maintaining a Healthy Microbiome 

Several things can help 

  • A plant-based, low-sugar, and high-fiber diet can promote good bacteria growth. 
  • Exercise can also help diversify the microbiome by reducing inflammation and promoting good bacteria growth.
  • Stress management can keep us healthy and much less likely to given in to cravings!

Remember a healthy microbiome is essential for a better quality of life. A balanced microbiome can help slow the aging process, support better mental health, enhance the immune system, and promote better digestion. 

There are several things we can do to maintain a healthy microbiome, such as eating well, exercising, and reducing stress. Our microbiome is the key to our overall physical, mental, and emotional well-being. By taking care of it, we reap the benefits of a long, healthy life.

For more information on how our digestion health and immune system are intimately connected please listen to Dr. Mirela Cernaianu’s podcast episode “Autoimmunity the new epidemic we need to worry about?”


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