What Makes Your Hair Curl

The video explores the science behind different hair types, focusing on the role of chemistry, physics, and genetics. It explains the structure of hair fibers and the bonds that hold them together, highlighting the influence of hair follicles on hair shape. The genetic basis for hair curliness is discussed, with specific genes identified for different populations. Methods to change hair shape, such as using heat or chemical treatments, are also covered.

Explain how heat can change the shape of hair.

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What are the differences between temporary and permanent hair treatments?

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