Dementia is one of the leading causes of disability and dependency among older adults worldwide. As populations age, the number of people living with dementia is rising rapidly. Dementia affects nearly a million people in the UK, with numbers projected to rise significantly by 2040. However, recent research offers hope: up to 45% of dementia cases could be prevented or delayed by addressing 14 modifiable risk factors throughout life.
The 14 key risk factors for dementia
The The Lancet Commission’s 2024 update on dementia prevention, intervention, and care identifies fourteen key risk factors, offering a clear roadmap for prevention. It also highlights the importance of proactive care and education, especially for healthcare professionals and carers in the UK. These are:
- Physical inactivity
- Smoking
- Excessive alcohol consumption
- Air pollution
- Head injury
- Infrequent social contact
- Lower levels of education
- Obesity
- Hypertension (high blood pressure)
- Diabetes
- Depression
- Hearing impairment
- Untreated vision loss
- High LDL cholesterol (bad cholesterol)
Addressing these risk factors through lifestyle changes and community-based interventions could significantly lower dementia prevalence.
The importance of Dementia Awareness training for UK healthcare professionals
In the UK, an estimated 900,000 people are currently living with dementia, a figure projected to rise to 1.6 million by 2040. With early intervention being critical, it is vital that all healthcare professionals are trained to recognise early symptoms and discuss risk reduction.
Dementia Awareness training helps ensure that GPs, nurses, social care workers, and hospital staff are equipped with the knowledge of dementia types and symptoms, communication techniques for engaging with patients and families, and the skills to advise on lifestyle changes such as smoking cessation, exercise, and blood pressure control.
Incorporating dementia education into ongoing professional development enables more holistic and preventative care, especially during critical midlife stages when interventions are most effective.
The vital role of carers in risk identification and management
Carers – both family members and professionals – play a critical front-line role in managing dementia. Their consistent interaction allows them to observe behavioural and physical changes, promote healthy habits, and support clinical care. Carers can contribute to risk reduction by:
- Encouraging physical activity and social interaction;
- Monitoring and managing conditions like diabetes and hypertension;
- Supporting hearing aid use and mental health treatment; and
- Facilitating appointments and medication adherence.
With over 700,000 unpaid carers supporting people with dementia in the UK, providing them with proper training, respite, and emotional support is not only beneficial to those they care for but is essential to sustaining the caregiving system itself.
A collaborative path forward
Dementia prevention and management cannot be achieved in silos. The insights from The Lancet’s global study give us the tools to take preventative action, but implementation requires joint efforts from healthcare systems, carers, policy-makers, and communities. By investing in dementia awareness training for healthcare professionals and supporting carers, the UK can reduce the future burden of dementia and significantly improve outcomes for people at risk.
