Why does stress give me knots in my stomach? - a podcast by Dr Chris Smith

Why does stress give me knots in my stomach? Why don't I gain weight when I eat? How does sun cream work? Why does wheat give me gas? If we were to compress air to the pressure of water could we then swim in air? Do any planets stay still? Plus the science of popcorn. Like this podcast? Please help us by supporting the Naked Scientists

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Website of Dr Chris Smith