Research into dementia risk factors is constantly evolving, with new studies shedding light on the importance of early intervention in reducing the risk of developing this debilitating condition. While dementia is often associated with older individuals, the roots of this condition may stretch back far earlier in life than previously thought.
A study conducted in 2023 by researchers in Sweden and the Czech Republic highlighted several birth factors that could be associated with a slightly increased risk of dementia later in life. While some factors, such as being a twin, are beyond individual control, others, like shorter birth spacing and maternal age over 35, may be influenced by parental decision-making.
In a separate study published in late 2024, experts from the Global Brain Health Institute in Ireland emphasized the importance of targeting risk factors for dementia in younger adults aged 18 to 39. This age group represents a critical window for intervention that could significantly reduce the risk of dementia later in life, according to neuroscientist Francesca Farina.
The identified risk factors for dementia in younger adults encompass a range of lifestyle and environmental factors, including excessive drinking, smoking, physical inactivity, social isolation, pollution exposure, traumatic brain injuries, hearing or vision loss, low education levels, obesity, diabetes, hypertension, high cholesterol, and depression. Addressing these factors early on could have a significant impact on reducing dementia risk in later life.
Researchers suggest that many of the risk factors for dementia may have their origins in childhood or infancy, with exposures in the first decade of life potentially having lifelong implications for dementia risk. Long-term studies have shown that cognitive abilities in childhood can have a lasting impact on cognitive function in later life, highlighting the importance of early intervention in promoting brain health.
Mitigating these risk factors requires a multi-faceted approach at the individual, community, and national levels. Raising awareness of brain health and risks, implementing public health campaigns, and educating young adults about the importance of brain health are crucial steps that can be taken at the individual level. At the community level, establishing advisory councils and liaising with local governments can help promote brain health initiatives, while at the national level, the development of a brain health charter can provide a roadmap for maintaining optimal brain health throughout life.
Overall, the research underscores the importance of early intervention in addressing dementia risk factors and highlights the potential for lifelong strategies to promote brain health and reduce the risk of developing dementia in later life. By identifying and addressing risk factors early on, individuals can take proactive steps to safeguard their cognitive health and well-being for the long term. The team of researchers emphasized the need for further study on various emerging factors that could impact our health. These factors include ultra-processed foods, drug use, screen time, stress, and microplastics exposure. The team believes that understanding the effects of these factors is crucial for promoting healthy longevity.
The research findings were recently published in The Lancet: Healthy Longevity, a renowned medical journal that focuses on promoting health and preventing diseases in aging populations. The study highlights the importance of investigating the potential health risks associated with these emerging factors and developing strategies to mitigate their negative impacts.
Ultra-processed foods have become increasingly prevalent in modern diets, and research suggests that they may contribute to various health issues such as obesity, cardiovascular diseases, and metabolic disorders. Understanding the role of ultra-processed foods in promoting unhealthy aging is essential for developing effective nutrition guidelines and interventions.
Drug use, including both prescription and recreational drugs, can have significant implications for long-term health. Substance abuse can lead to addiction, mental health disorders, and physical health problems. Investigating the effects of drug use on healthy aging is crucial for developing prevention and treatment strategies.
Excessive screen time, particularly from digital devices such as smartphones, tablets, and computers, has been linked to various health issues such as eye strain, sleep disturbances, and sedentary behavior. Finding ways to reduce screen time and promote healthier habits is important for maintaining overall well-being as we age.
Chronic stress is a pervasive issue in today’s society and can have detrimental effects on both physical and mental health. Research suggests that chronic stress may contribute to the development of chronic diseases and accelerate the aging process. Exploring the relationship between stress and healthy aging is essential for developing stress management techniques and interventions.
Microplastics exposure is a growing concern due to their widespread presence in the environment and potential health risks. Microplastics have been found in various food and water sources, raising concerns about their impact on human health. Studying the effects of microplastics exposure on healthy longevity is crucial for understanding the potential risks and developing strategies to reduce exposure.
Overall, the research team’s findings underscore the importance of investigating these emerging factors and their impact on healthy aging. By understanding the potential risks associated with ultra-processed foods, drug use, screen time, stress, and microplastics exposure, we can work towards promoting healthier lifestyles and improving overall well-being in aging populations.

