An Interview with Dr Rebecca Denniss BSc, MSc, PhD

The GBIA website is about accessing the latest science and information to help you understand your brain injury and know what you can do to improve your experience of living with a brain injury. 

We are solutions-focused and believe there is a lot you can do to help yourself feel better. 

So, imagine how excited we were to have the opportunity to speak to Dr Rebecca Denniss, not only about her research, but also about the impact of the biochemical cascade and effects on our whole physiology. 

We hope you take the time to put your feet up with a cuppa and spend the time to watch the video. We promise you it is full of answers that will join your dots and provides lots of information that will lead to personal insights! 

This is also great for families to watch as it explains so much about what is happening behind the observable changes. 

How we understand brain injury is changing rapidly and we believe every one of you should have the opportunity to best support yourselves in figuring out what has changed, and how to make the cognitive connections that allow your brain to rewire. 

Your intellect will understand facts but one of the hardest things is connecting to, and relating to information, so that you can internalise and use it. 

This video is an excellent place to start!

More about Dr Rebecca Denniss 

Rebecca is a researcher and associate lecturer in psychology and neuroscience at Sheffield Hallam University.

Her current focus of research is investigating whether micronutrient supplements (vitamins, minerals, omega-3) can help counteract some of the ongoing secondary cascade processes that follow a traumatic brain injury, and as an outcome improve cognition.

The research had some positive findings which she hopes to publish over the next year.

Earlier research in the general public (Denniss, Barker & Day 2019) also showed improvements in cognition following micronutrient supplementation. Rebecca also has an interest in how disruption to the gut following head injury affects cognition. She is also investigating the difficulties some people have with getting access to neurorehabilitation services, from both the patient and neurorehabilitation service perspectives. If anyone (patient or clinician) would like to talk to Rebecca about this subject please email

Please take a moment to register your interest in participating in research.

Helping Brain Injury Researchers and Scientists – Global Brain Injury Awareness ( – Global Database

Cambridge University – UK 

NIDILRR and the TBI National Database – USA

NIHR Brain Injury MedTech Cooperative – UK