Nervous System
Brain
The brain is the command center of your body. It interprets information from your senses, controls movement, stores memories and regulates the automatic functions that keep you alive.
~1.4 kg
Average adult weight
86 billion
Neurons
20%
Of the body’s oxygen use
Where is the brain located?
Inside the skull, protected by the cranium, three membranes (the meninges) and a cushion of cerebrospinal fluid.
What does the brain do?
- Processes sight, sound, touch, taste and smell
- Plans and coordinates voluntary movement
- Forms, stores and retrieves memories
- Regulates breathing, heart rate and body temperature
- Controls emotions, language and decision-making
Key parts of the brain
Cerebrum
The largest part; handles thinking, language, senses and voluntary movement.
Cerebellum
Coordinates balance, posture and smooth, precise movement.
Brainstem
Connects the brain to the spinal cord and runs breathing and heart rate.
Hypothalamus
Links the nervous and endocrine systems and controls hunger, thirst and temperature.
How to keep your brain healthy
- Sleep 7–9 hours so the brain can consolidate memories
- Stay physically active to boost blood flow to the brain
- Eat omega-3 rich foods, leafy greens and berries
- Wear a helmet for cycling and contact sports
- Keep learning: new skills build new neural connections
Holistic approach
Holistic Ways to Support Your Brain
Gentle everyday practices plus three traditional herbs, with honest notes on evidence and safety.
Mindfulness meditation
Consistent sleep schedule
Aerobic movement
Cognitive stimulation
Herbs & tinctures
At a glance
- Organ: Brain
- Body system: Nervous System
- Average adult weight: ~1.4 kg
- Neurons: 86 billion
Did you know?
Your brain generates about 12–25 watts of electricity, enough to power a low-wattage LED bulb.
7-Day Brain Meal Plan
A week of simple meals built around omega-3 fats, produce and whole grains, with 21 easy recipes and a grocery list.
Educational note: This page is for general anatomy education and does not provide medical diagnosis or treatment advice. Talk to a healthcare professional about any concerns.
Shop by organ
Brain Health Products
Hand-picked products to support your brain.
-
Magnesium L-Threonate, Magtein, Clinically Studied, 2000mg, 120 Capsules
$32.95Original price was: $32.95.$29.95Current price is: $29.95.
Keep exploring
Explore Related Organs
See how other organs work alongside this one.




