Even though we all spend about a third of our lives asleep, there's still plenty left for us to learn about the science of sleep. This month, Horizon looks at the importance of shuteye for our physical and mental health, and how sleep-deprived brains may be both awake and asleep at the same time. Plus, we investigate what exactly drives us to sleep and wake up, the effects of insomnia, and how the way our bodies use sleep to form memories is inspiring scientists to discover ways to improve our brains.
For many people who struggle to get a good night’s rest, being able to switch on and off the brain circuits that control sleep would be a life-changer. The good news is that’s exactly what scientists hope to do, but first they need to get a better understanding of what’s going on.
Genes and adverse childhood experiences could result in a hyperalert brain that is good at being ready for action but gives rise to insomnia in later life, according to Professor Eus Van Someren, a sleep expert at the Netherlands Institute for Neuroscience. He is investigating the link between insomnia and depression and has discovered a strong genetic correlation among the two conditions.
Reducing the trauma associated with bad memories while someone is asleep sounds like the stuff of science fiction, but it could become a reality in 10 years thanks to a greater understanding of how the brain encodes memories during sleep.
For something that can occupy such a significant chunk of time, sleep still remains a mysterious part of our lives. Although it is known to play a role in mental and physical health, such as metabolism and memory, there is much that is still not well understood.
To mark the European year of cultural heritage, Horizon explores how science is helping to uncover more about our past and to preserve our art, landscapes, buildings and ways of life for the future. We discover why prehistoric humans chose to paint rock art where they did, and how farming techniques from hundreds of years ago could help fight climate change today. Plus, we learn how cultural heritage feeds into European identities and what can be done to prevent the destruction of historical sites during wartime.
The way we work is undergoing a major shift thanks to technological development and demographic change and, this month, Horizon looks at how research is helping us stay ahead of the game. We find out how decisions made early in your career could determine when you retire, and how to get the most out of the relationship between humans and machines in factories. We also investigate some of the ethical issues that could arise in the jobs of the future and how best to take them into account.
Global warming is a reality – but just how bad will it be? A study published in January 2018 claims to halve the uncertainty around how much our planet's temperature will change in response to rising carbon dioxide (CO2) levels, potentially giving governments more confidence to prepare for the future.
Crimes that involve chemical, biological, radiological or nuclear (CBRN) materials pose a deadly threat not just to the target of the attack but to innocent bystanders and police investigators. Often, these crimes may involve unusual circumstances or they are terrorist-related incidents, such as an assassination attempt or the sending of poisons through the mail.
A new analysis all but rules out the best and worst warming scenarios – but not everyone believes it.
Remote-sensing tech paves the way for police and first responders.
'Moonshots' could energise Europe's science funding and make Europe cool again, says innovation expert Prof. Mazzucato in a new report.