@thehighmagazine on Instagram: "Here are some fascinating facts about the human brain: ⸻ 🧠 General Facts 1. Weight: The average adult brain weighs about 3 pounds (1.4 kg). 2. Energy Consumption: It uses about 20% of the body’s energy, even though it’s only ~2% of body weight. 3. Composition: It’s about 75% water, which is why hydration is key for cognitive function. ⸻ 🧬 Structure and Function 4. Neurons: The brain has about 86 billion neurons that transmit information through electrical and ch