Music is found in every human culture and one theory is that it was an evolutionary precursor to language.
Whereas language allows us to make propositional, "information rich" statements, music is far vaguer but arguably provides a superior means of conveying emotion. The podcast describes how this emotional power is being harnessed to help people with Alzheimer's. We also hear how singing can help stroke patients rediscover their lost voices.
However, my favourite discovery from the podcast is that birds can dance.
Link to today's Guardian Science podcast.
Link to Youtube video of a dancing bird.
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