Neil Howlett conducts research in the areas of physical activity, behaviour change, and public health. Neil has expertise in behaviour change methodology including: designing, implementing, and evaluating interventions to help individuals, communities, and populations change a range of health behaviours; evidence synthesis such as systematic reviews and meta-analyses; broad knowledge of behaviour change theories; training a range of health professionals in behaviour change and communication skills; input into national guidance and strategy documents; pragmatic evaluations in public health. He has been principal investigator on Department of Health, Lottery, and Local Enterprise Partnership-funded grants with the charity HENRY, evaluating volunteer-delivered parenting programmes and developing a new teenage programme focused on physical activity and eating behaviours. Additionally, Neil co-led the design, implementation, and evaluation of the Sport England-funded Active Herts programme. Neil has been a successful lead or co-applicant on nearly £5 million of grants. A key current project is the NIHR-funded PHIRST grant. PHIRST is a responsive public health evaluation team working with a number of local authorities to evaluate their services. Neil is currently leading two PHIRST evaluations focusing on COVID-19/Vaccine champions and community participatory action research programmes in Southampton, and Green Health Partnerships in Scotland. Neil is also a Trustee for the Behavioural Science and Public Health Network charity.