A range of Covid-19 vaccines are being developed worldwide and the differences between them can be confusing. How do the new mRNA vaccines work? What about vector vaccines? We asked scientists to give us an insight into the different types of Covid-19 vaccines.
Communication between our gut and our brain is a two-way street. A large part of the signals being sent from our intestines to our brain is thanks to the bacteria living inside us, our microbiome. Our gut microbes have been linked to anxiety and depression, and research is underway to see whether we can manipulate our bacterial populations to benefit our mental health.