Should we be more cheerful? The media often suggests that the world is getting worse, but if we look again we can find plenty of reasons to be positive about the future.
The news is terrible… but the truth is good
Cause for celebration: Our brains are hardwired to react more strongly to negative events. Glossary
Fossil fuels - Fuels made from decomposing plants and animals, including coal, natural gas and oil. These fuels release carbon dioxide, causing global warming.
Sickle cell disease - A group of inherent disorders that cause unusually shaped red blood cells in sufferers.
Alzheimer's disease - A progressive disease that causes brain damage over time. It is a common cause of dementia.
UN - United Nations. An intergovernmental organisation based in New York that aims to maintain international peace and security.