How your brain chemistry rewards hard work

00:46 Why completing difficult tasks feels rewardingNature: Touponse et al.11:34 Research HighlightsNature: Disappearing ‘planet’ reveals a solar system’s turbulent timesNature: Getting to the (square) root of stock-market swings13:43 How extreme weather events could threaten malaria elimination effortsNature: Symons et al.Subscribe to Nature Briefing, an unmissable daily round-up of science news, opinion and analysis free in your inbox every weekday. Hosted on Acast. See acast.com/privacy for more information.