When the weather is too hot to do much of anything – leave the house, think straight – a lot of us also find it’s even too hot to feel hungry.

Why is it that our appetites shrink when the mercury climbs? Turns out it isn’t just because the body is being fussy. Rather, it’s because the balance between heat and hunger is a dynamic one. And in a heatwave, the body needs to shift its priorities from digesting and absorbing a meal to preventing itself from overheating.

With the resignation of Keir Starmer, the UK lost its sixth prime minister in a decade. His decision to stand down has therefore left many wondering what has changed in British politics over this period. Why does no one stay in office for more than a few short years anymore?

And finally, we put free will under the lens – asking whether a refusal to believe in it makes you a good or bad person.