According to the World Health Organisation, "air pollution is now the world's...
Could sugar be fuelling superbugs in hospitals?
What's on the horizon for space commerce in 2018?
Are there any magic solutions for speedily sobering up?
What's the psychology behind changing your behaviour?
Can a machine distinguish a crying baby from a dog's bark?
Poison 101 - can anything be a poison?
Could the perfect poison be something we haven't detected yet?
How do scientists identify killer compounds?
Are there potentially poisonous compounds lurking our cupboards that we should be aware of?
What killer compounds have emerged from the history books?
What did Homo Naledi's brain look like?
Britons have bought 47-million bottles of gin this year, but how is it made?
Why do sprouts look so weird? And why do people hate them so much?
WARNING: Jelly babies and gingerbread men were harmed in the making of this programme.
And why are kid up at the crack of dawn on Christmas Day?
Do you sing like an angel or screech like a cat?
What's the best technology of 2017?
How do we choose what to buy, and are the shops pulling on our strings?
Our guests get into a bit of a tangle...
First things first, put up the Christmas tree!
How do you measure a ghost?
False memories can lead to wrong convictions...
What food can be foraged in the local park?
Don't mess with the Irukandji jellyfish...