O2 Your Brain And How It Works
1.8 KB · Apr 7, 2026 11:14pm
Your brain is the most energy hungry organ in your body. It makes up about 2 percent of your weight but uses 20 percent of your energy. Everything you think, remember, feel, and do starts there. So when something is off with your brain, you feel it everywhere.
Brain fog, poor memory, difficulty concentrating, that feeling of just not being sharp. These are not normal parts of aging. They are signs that your brain is not getting what it needs.
So what does your brain actually need? Three things.
First, it needs the right fuel. Your brain cells run on specific nutrients. Magnesium for signalling between neurons. Choline for making the memory chemical acetylcholine. Omega-3 fats for building and maintaining the structure of brain cells themselves. Most people are low in all three.
Second, it needs growth. Your brain can form new connections at any age. This is called neuroplasticity. But it needs specific compounds to do it. There is a protein called BDNF, brain derived neurotrophic factor, that acts like fertiliser for your brain. The more BDNF you have, the better your brain builds and maintains its networks.
Third, it needs protection. Every day your brain accumulates waste products from normal activity. During deep sleep, your brain activates a cleaning system that flushes this waste out. If your sleep is poor, the waste builds up. Over time, that buildup is linked to cognitive decline.
The good news is that all three of these can be supported. The right supplements, the right habits, and the right understanding of how your brain works can make a genuine difference.
I am going to walk you through exactly what your brain needs, why it needs it, and how to give it the best chance of staying sharp for as long as possible. Let us start with the supplement that most people have never heard of but that your brain is quietly crying out for.