A full head of human hair is strong enough to support up to 12 tons in weight. Microglia are brain cells that trim/eat long synapses of material that no longer functions throughout the brain. Scientists have used the video game Pac-Man to explain this process. Odd Science: Brilliant Bodies is filled with weird and wacky facts that you’ve never heard before. Read about how ice cream gives you brain freeze, wonder at how much information your brain can process and tell your friends that a whole tonne of air is always pressing down on you. There are facts about breathing underwater, facts about pineapple ‘eating’ you (while you eat it) and facts about how music makes you feel good.