Fascinating Facts About the Brain and Nature

Your brain burns 20% of your daily calories just by thinking. That's about 400

calories spent on mental processes alone, making it one of your body's most

energy-hungry organs. This is why intense studying or problem-solving can actually make you feel physically

tired. Honey never spoils because bacteria can't survive in its acidic,

low-moisture environment. Archaeologists have found edible honey in Egyptian tombs thousands of years

old. Finally, octopuses have three hearts and blue blood,

with two hearts pumping blood to their gills and one to the rest of their body.