Fatty fish such as salmon and sardines contain omega-3 fatty acids that have been found to have beneficial effects for the heart, brain and inflammatory conditions such as arthritis. It is possible to test your level of omega-3, known as the omega-3 Index.
Lifestyle and brain health
What do we know about the effects of mindfulness meditation and yoga on the brain? Could it be that taking up or continuing with one of these fashionable practices in 2018 will benefit your brain?
Oxford’s neuroscientists answer some questions from The Big Brain Competition