A renowned physician points to the gut as responsible for producing 90% of our happiness
Research has been uncovering just how important our gut is and the connection between it and the brain to shaping how we feel.
Could your gut be controlling your mood more than your brain? A renowned medical expert claims that up to 90% of the body’s serotonin—the “happiness hormone”—is actually produced in the intestines.
This surprising connection between gut health and emotional well-being is gaining attention in scientific circles, with new research shedding light on just how deeply intertwined our digestive system and mental state truly are.
The gut-brain connection: more than just digestion
The role of gut microbiota—the trillions of microorganisms living in our digestive tract—has been extensively studied in relation to overall health, immunity, and even the prevention of diseases like cancer. But now, scientists are uncovering its significant influence on mental health and happiness.
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One of the leading voices in this field is María Dolores de la Puerta, a respected researcher and author of Un intestino feliz (A Happy Gut). Huffington Post shared excerpts from a recent podcast with Endor Technologies where De la Puerta emphasized that our gut is far more than just a digestive organ; it’s a critical player in regulating emotions and well-being.
The science behind your “second brain”
According to De la Puerta, the gut is packed with neurons—as many as those found in the spinal cord. This neural network is responsible for producing the majority of serotonin in the body. “The neurons in our gut are the same type as those in our brain,” she explains. “Since 90% of serotonin is produced in the intestines, the connection between digestive health and happiness is undeniable.”
This gut-brain link explains why we use phrases like “butterflies in my stomach” or “my stomach is in knots” when experiencing strong emotions. These sensations, De la Puerta says, are directly tied to serotonin and dopamine activity in the intestines.
Why your gut might be your “first brain”
Given its crucial role in neurotransmitter production, some researchers are even suggesting that the gut, not the brain, should be considered the body’s “first brain.” De la Puerta, drawing from decades of clinical experience, affirms this perspective. “When scientists have studied the enteric nervous system—the nervous system of the gut—they’ve found that its neurons are highly functional and exist in massive numbers.”
What this means for you
This research could give clues to why we may be feeling off kilter. So, the next time you’re feeling down, you may want to pay attention to your diet as your gut health may be off balance. Your happiness may depend on it.
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