The fancy science word for building muscle is hypertrophy, but it's not inaccessible. Learn how hypertrophy works and why building muscle keeps us healthy in this episode of BrainStuff.

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Shredded, chewed, exhumed, or burnt American bills aren't necessarily lost -- a service of the Department of Treasury may reimburse you for their cash value. Learn about the Mutilated Currency Redemption Service in this episode of BrainStuff.

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Light and tender fried fish plated with crisp fried potatoes is a classic English comfort meal, but it's only a little over a century old. Learn the history of fish and chips in this episode of BrainStuff.

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Ocean water can appear many dazzling shades of blue and green depending on where you are. Learn why in this episode of BrainStuff.

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Starlings flock in swooping, harmonious groups of thousands of birds called murmurations. Learn how these birds pull off such an amazing feat through simple actions in this episode of BrainStuff.

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More people are drinking fizzy water, both plain and in a boggling array of flavors. Learn about the different types of sparkling water and what you should watch out for in this episode of BrainStuff.

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Yes, there’s a cave shaped like a rhinoceros in Washington State. Learn how it was created and discovered in this episode of BrainStuff.

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Trees pull and store carbon, but lots of land that could support them is deforested. Learn how researchers think planting trees could help mitigate climate change in this episode of BrainStuff.

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Research shows that women are less likely to receive CPR when they need it, and fixing that might require introducing training mannequins with breasts. Learn about a project that’s trying to help in this episode of BrainStuff.

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Seashells are a pretty sight on beaches, but it turns out that they play an important role in seaside structures and ecosystems. Learn why -- and why shell poaching is a problem -- in this episode of BrainStuff.

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