Our brain function and the health of our nervous system is essential to living an attuned and healthy life. As our brain and nervous system begin to degenerate from negligence and age, so too does the quality of our everyday living, as our memory, cognition, and physical capabilities are directly affected. Once degeneration of the brain starts, it sets off a kind of domino effect throughout the rest of the body, so this month we’re looking at how we can keep our brains healthy and the neurons firing for the long haul!
I started listening to the Huberman Lab podcast a few months ago and I’ve been hooked. All of the information he shares is pulled from his own experience and research, as well as from other research professionals in the fitness, wellness, and health science industries. He’s a man of great knowledge and a great passion for living an intentionally healthy life. The information I’ll be sharing in this blog is heavily inspired by a couple of his episodes, and I’m super excited about it! He reminded me just how incredible our brain and nervous system are.
First things first, did you know that our brain doesn’t make new neurons throughout our life? The neurons we have can change and develop over time (for better or for worse) but once they’ve degenerated to nothing, there’s no bringing them back. And this one fact right here should be enough to convince you of the importance of taking care of your brain every day. Without an intentional focus on nurturing peak brain function and maintaining brain health over time, our memory, focus, and cognition suffer greatly and it’s hard to feel truly healthy.
So how can we make sure that we’re doing all we can to keep our brain firing on all cylinders as it should? Of course, like anything in life, there are many different ways to ‘feed’ your brain. The first way is to literally feed it with food. Then there’s sleep, meditation, and exercise. And lastly, interactive and cognitive games/activities. When all of these healthy initiatives are combined, well then your brain and nervous system are feeling on top of the world!
MODULATORY COMPONENTS OF BRAIN HEALTH
Sleep
Sleep is an important time for our brain. Quality and ample sleep is the foundation of all mental and physical health. Poor quality sleep exacerbates dementia and affects focus, learning, memory, the ability to connect socially, physical health, and more. Without sleep, the brain struggles to function properly. Because they don’t have time to recuperate, neurons become overworked and are less capable of optimal performance in numerous types of thinking.
It is suggested we do our best to sleep around the same time each night and to get the same amount of hours in each night (anywhere from 7-8 hours). Recent findings suggest that sleep plays a housekeeping role that removes toxins in your brain that build up while you are awake.
Good sleep hygiene should be at the top of all our healthy habits to-do list!
Exercise
Specifically, cardiovascular exercise. It is recommended that everyone engage in a minimum of 150-180 minutes of cardio training per week. This type of exercise is crucial for heart health, which is directly related to brain function (blood circulation is key to nervous system health and function!).
Meditation
Try for just 5-10 minutes a day. Meditation – no matter how long each day – strengthens neural connections and can literally change the configuration of these networks. With regular practice, you can cultivate more resilient neurobiology that contributes to a greater sense of well-being and maintains brain health as you age. There are lots of meditation videos and apps available to choose from, but my personal favourite is the Headspace app because it offers a wide variety of meditations and some are as short as 3 minutes. Easy to fit in before bed or first thing in the morning before getting out of bed.
MEDIATING* COMPONENTS OF BRAIN HEALTH
*mediating meaning directly controlling the nerves cells in our brain.
Food
Of course, food affects our brain health! The food that we invest indirectly impacts every part of our body. Our systems, organs, blood, cells. It’s why nutritionists exist. So we can help you fill your body with all the right foods to help you thrive!
Which foods/supplements are best to support the structure of neurons and cells of the brain that allow us to function? Believe it or not, studies and Huberman argue that the most important food element for brain function is fat. But not storage fat (nonessential fat), rather structural fat. The water content of the brain is incredibly high and the integrity of our neurons and cells comes from fat. This structural (essential) fat we’re referring to comes from particular foods.
Where can we source this magical, structural fat? You’ll find it in:
- Omega-3
- Phosphatidylserine
- Choline
- Dark skinned berries
- Glutamine
Omega 3s are helpful for normal cognitive function as they support the cells that allow for cognition, movement and memory. They also offset depression and improve mood! Try for 1.5-3 grams per day.
You can get this from fish oil supplement Or krill oil/algae (for vegans). Or from eating foods including:
- Fish
- Caviar
- Chia seeds
- Walnuts
Phosphatidylserine – lipid-like compound
- Meat and fish
- Cabbage
- Supplements
Choline – is a neuromodulator, a chemical that modulates the function of brain circuits and circuits in the body. It works to exchange the chemical activity of some neurons and downplay the activity of others. It’s like a conductor and specifically affects your focus and alertness (through the production of an ego-choline). Eggs and egg yolks are incredible sources of choline and are a rich rich source of nutrients for the brain. For vegans, potatoes, nuts, and seeds are great options! Strive to get 500-1,000 mg per day.
Blueberries and dark berries or blueberry extract. These potent berries reduce DNA damage as well as cognitive decline.
Glutamine – an extra important supplement to ingest if you experience sleep apnea! Apnea (lack of oxygen to the brain) directly related to cognitive decline and dysfunction. It is a serious sleep and health issue. Among other interventions, glutamine can help with sleep apnea by reducing inflammation. You can take glutamine as a supplement in very small amounts.
REMEMBER – because our brain is composed of 73% water, it is also important to consume adequate water in a day, as well as your daily dose of sodium and magnesium.
Hot tip! Ingestion of low-sugar fermented foods each day can enhance the quality of the mucosal lining of the gut and gut microbiome conditions. Think kimchi – yum!
What’s interesting about our brain and food, and what Dr. Huberman explains in his podcast is that the perception of what foods we like is a central phenomenon of the brain. Our food preference has nothing to do with the actual taste of the food but rather how your brain is perceiving it. Like hearing, vision, smell, and touch, the taste is an internal representation that has particular goals for you and your body. Your sense of what tastes good relates to what’s currently occurring in your brain and body. It’s not about what you like/what tastes good, it’s about what your body needs. Your body and brain are acting in a coordinated way to make you prefer certain foods and make you pursue those foods. There becomes a learned association of a particular taste with a particular quality/value that a food has. Incredible isn’t it?
What’s even more incredible is realizing that what our bodies are seeking when we eat is not taste, but rather food that allows our neurons to be metabolically active. We don’t realize this because it’s subconscious, but this reality is fundamentally important to understand why we eat specific foods and how we can change these foods to make sure we’re ingesting nutritious products for our brain health.
“Foods impact our brain and its health and they also impact how our brain functions and responds to food, and that is largely a learned response. When we regularly consume foods that are less sweet, less savoury, those foods that we say are super-palatable foods, we can adjust our sense of what we perceive as an attractive and rewarding food and indeed our dopamine system will reward those foods accordingly.”
This learned association helps us enjoy nutrient-packed foods more!
Interested in learning more about foods and supplements that can maintain and help your brain and nervous system thrive? I’d love to work with you one on one to reach your nutrition goals! Let’s chat 🙂
Want to learn more about the intricate science behind food and brain function? Check out the Huberman Hub podcast on Spotify, episode 42. Dr. Andrew Huberman is a tenured Professor of Neurobiology and Ophthalmology at Stanford School of Medicine. For more than 20 years, Dr. Huberman has consistently published original research findings and reviewed articles in top-level peer-reviewed journals, including Nature, Science, Cell, Neuron, and Current Biology.