Super smellers – the human sense of smell is much more capable than we thought.

Ancient fruit and veggies – how little they have in common with their modern counterparts.

Pollution in our cities – how it affects our brain.

Sources:
https://www.theguardian.com/environment/2018/aug/27/air-pollution-causes-huge-reduction-in-intelligence-study-reveals

https://mobile.abc.net.au/news/2017-05-05/are-you-a-super-smeller/8501018

https://www.businessinsider.com/what-foods-looked-like-before-genetic-modification/?r=AU&IR=T