So you're arguing with your SO over the temperature in the living room. Why are some of us always hot while others cold?

IT’S a strange phenomenon that some of us are always freezing, while others are absolutely boiling hot. You can be shivering in five layers at exactly the same time as your partner is flinging open windows, fanning themselves. It’s not just to do with your weight and size, but also your age, gender, diet, sleep patterns, lifestyle and even your happiness.

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