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Fitness | Health News

This One Dietary Change May Be Key In Treating Anxiety & Depression, Research Says

From our work environment to how much sleep we get, there are many things in life that affect our mental health. But what about the mental health influencers that come from within our own bodies? Well, as anyone with a “nervous stomach” can tell you, there’s a strong link between our digestive systems and our brains. That said, the mental health/gut connection is just starting to get the attention from modern medicine that it deserves.

Mental Health and Your Gut: How Are They Connected?

The Gut-Brain Connection

It’s pretty safe to say that most of us are aware that the brain has a direct effect on the stomach. But — and hold onto your hats here — did you know that the stomach has a direct effect on the brain? Crazy, right? Let’s look at the whole situation a little more in depth.

The gut and brain communicate by way of the nervous system, the immune system, and through hormones. This connection goes both ways, as some of the microbes that live in our gut have the ability to release neurotransmitters — essentially, they can speak to the brain in its own language. In addition to these talkative microbes, there are more than 200 million neurons lining the gastrointestinal tract that further help the gut in communicating with the brain.

What all this boils down to is that an unhappy stomach can send signals to the brain, and an unhappy brain can send signals to the stomach. Scientifically speaking, this is what’s happening:

  • The body responds to mental or physical stress by triggering your “fight or flight” response.
  • Normally, our bodies subdue the “fight or flight” response once the danger has passed. However, under conditions of chronic stress, this doesn’t happen, and you’re left with both mental and physical health issues (anxiety, depression, stomach pain, migraines, high blood pressure, and so on.)
  • Not only does the body react to stress with a hormonal response but also with an immunological one. Unfortunately, our body’s stress response can’t easily distinguish between mental and physical distress.
  • The immune system goes into high alert, releasing inflammatory cytokines, reacting to the stress as if it were an infection. This means that our bodies treat chronic stress as a chronic infection — and that’s not good.

This is why the gut plays a critical role in mental and emotional well-being, and why stomach or intestinal pain can be caused by anxiety, stress, or depression.

What Can You Do to Stay Healthy?

Unfortunately, our guts and brains can get stuck in a negative feedback loop in which the brain tells the stomach it’s upset, causing the stomach to tell the brain it, too, is upset, and round and round it goes until you’re completely miserable. (Trust me, I have personal experience in this.)

If you have diagnosed depression or anxiety, typical treatment will include prescription medications and talk therapy. In some cases, stomach issues such as functional pain or irritable bowel syndrome will also be treated with antidepressants, as these medications calm symptoms by acting on the nerve cells in the gut. There’s also ongoing research that shows probiotics may also be a potential treatment.

A UCLA study has revealed tentative evidence that probiotics ingested in food might be able to alter human brain function. Researchers divided their subjects into three groups: the first group was fed yogurt containing probiotics twice a day for four weeks; the second was fed a dairy product that contained no probiotics; and the third was given nothing at all.

After consuming (or not consuming) the probiotics, the subjects had their brains scanned while being shown pictures of people with frightened or angry facial expressions. Normally, these images prompted increased activity in the emotion-processing areas of the brain that become active during a state of heightened alert. Anxious people, in particular, are sensitive to such images and often have visceral reactions. However, the subjects on the probiotic yogurt diet had a less “reflexive” response to the images, which may prove that the bacteria in our intestines can have a marked effect on our mental health and how we interpret the world around us.

However, these studies are still in the early stages, and we don’t yet know if probiotics can reduce the symptoms of anxiety and depression. What’s more, it’s highly doubtful that probiotics alone will ever serve as a “cure” for any mental illness or replace therapy and medications. They would most likely be a supplemental treatment.

Although the connection between mental health and the gut — and the chronic conditions that can result because of it — are still being explored, it’s time the medical community took a bit more notice. Dr. Colleen Clemency Cordes, Director and Clinical Professor in the Doctor of Behavioral Health Program at Arizona State University, explains, “There is such a large need in our medical system to address the behavioral issues that contribute greatly to chronic health conditions and policy is moving to support it.” Said policy, such as mental health parity laws, can help us bring about a future where all Americans can get the care they need.

Have you noticed a difference in your mental state when you’ve regularly consumed probiotic-rich foods?

Also by Liz: 5 Things I Learned From *Actually* Doing A Pinterest-Style Home Renovation

Related: 4 Unconventional Ways to Boost Your Mental Health You’ll Want To Try ASAP

The One Thing That Banishes Food Anxiety For Good (*And* Keeps You Healthy)

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