I confess, I worry about not being able to author research papers, interpret statistics, or understand my children’s homework one day! I want to write more books, I want to understand more of the world and the human condition, and teach hypnotherapy until I am considered far too old to do such things! Apparently, cognitive decline is a natural part of ageing, but the science tends to suggest that it doesn’t have to be inevitable. By taking proactive steps to protect your brain health, you can stave off cognitive decline and keep your mind sharp and youthful. Great news for me. So today in this article, I’m offering up a number of scientifically-backed strategies that can help you maintain your cognitive abilities and improve your overall mental health accordingly.

Understanding Cognitive Decline

Cognitive decline refers to the gradual loss of brain functions such as memory, attention, and the ability to solve problems. For me it also refers to a reduction in our capacity for critical thinking, which is vital to the way I live and work. It is a common aspect of ageing, but its severity can vary greatly from person to person. Some of the early signs include forgetfulness, difficulty concentrating, and trouble with everyday tasks that were once simple. While cognitive decline is often associated with diseases like Alzheimer’s and other forms of dementia, it can also occur in otherwise healthy individuals due to various factors, including lifestyle choices and genetic predisposition.

The benefits of protecting against cognitive decline are numerous. Not only does it improve the quality of life by maintaining mental sharpness, but it also fosters independence, enhances emotional well-being, and reduces the risk of mental health disorders. Moreover, a healthy brain contributes to better physical health, as mental and physical well-being are deeply interconnected. It makes sense that we all attend to it, doesn’t it?

Stay Mentally Active

Engaging in mentally stimulating activities is crucial for brain health. Activities such as reading, writing, playing musical instruments, and solving puzzles can help keep the brain active and engaged. According to a study published in the journal Neurology, individuals who engage in cognitive activities have a slower rate of cognitive decline compared to those who do not (Wilson et al., 2013).

“Use it or lose it” is a phrase often used to describe the importance of mental activity. Regular mental challenges stimulate neural pathways and promote neuroplasticity, the brain’s ability to reorganise itself by forming new neural connections throughout life. For me, and many of you regular readers, this is the very thing we want to do more of, so keep on doing the things you find mentally stimulating, and challenging, and it’ll help greatly as far as slowing cognitive decline is concerned.

Exercise Regularly

Physical exercise is not just good for the body; it’s also beneficial for the brain. Aerobic exercise, such as walking, swimming, and cycling, has been shown to improve cognitive function and reduce the risk of cognitive decline. A review of research published in the British Journal of Sports Medicine found that regular physical activity is associated with improved cognitive performance and a lower risk of developing dementia (Sofi et al., 2011).

Exercise increases blood flow to the brain, which helps deliver essential nutrients and oxygen. It also promotes the release of neurotrophic factors, which are proteins that support the growth and survival of neurons.

Maintain a Healthy Diet

A balanced diet rich in antioxidants, healthy fats, vitamins, and minerals can support brain health. The Mediterranean diet, which includes plenty of fruits, vegetables, whole grains, fish, and olive oil, has been linked to a reduced risk of cognitive decline. A study published in the journal Alzheimer’s & Dementia found that adherence to the Mediterranean diet was associated with better cognitive function and a lower risk of cognitive impairment (Scarmeas et al., 2006).

Omega-3 fatty acids, found in fish such as salmon and in flaxseeds and walnuts, are particularly beneficial for brain health. They support brain cell structure and function and have anti-inflammatory properties that can protect against brain ageing.

Get Enough Sleep

Sleep is essential for cognitive function and overall brain health. During sleep, the brain consolidates memories and clears out toxins that can accumulate during the day. Chronic sleep deprivation can lead to cognitive decline and increase the risk of dementia. According to research published in the journal Sleep, individuals who have poor sleep quality are at a higher risk of developing cognitive impairment (Spira et al., 2013).

To promote good sleep, establish a regular sleep routine, create a comfortable sleep environment, and avoid stimulants like caffeine and electronic devices before bedtime.

Self-hypnosis is a great tool to advance sleep in a range of ways, visit this page all about how to Learn Self-Hypnosis, and also here are some additional articles to help with that:

a) Using Self-Hypnosis To Get to Sleep

b) Using Self-Hypnosis to Delve Into the Darkness

c) Using Self-Hypnosis to Quiet the Mind.

Manage Stress

Chronic stress can have detrimental effects on the brain, leading to cognitive decline over time. Stress hormones like cortisol can damage the hippocampus, a region of the brain involved in memory and learning. Practising stress management techniques such as self-hypnosis, mindfulness, meditation, and yoga can help reduce stress and protect against cognitive decline.

A study published in the journal Psychiatry Research found that mindfulness meditation can improve cognitive function and increase grey matter density in the brain (Hölzel et al., 2011). Regular practice of mindfulness can help you stay calm, focused, and resilient in the face of stress.

Stay Socially Connected

As I wrote here on my blog a couple of weeks ago; maintaining strong social connections is vital for cognitive health. Social interactions stimulate the brain, provide emotional support, and help prevent feelings of loneliness and depression, which are risk factors for cognitive decline. According to a study published in the American Journal of Public Health, individuals with larger social networks have a lower risk of cognitive decline (Barnes et al., 2004).

Joining clubs, volunteering, staying in touch with friends and family, and participating in community activities are excellent ways to stay socially engaged.

Learn New Skills

Learning new skills and hobbies can challenge the brain and promote cognitive health. Whether it’s learning a new language, taking up a new sport, or mastering a musical instrument, these activities can create new neural pathways and enhance brain plasticity. A study published in Psychological Science found that engaging in new and demanding activities can improve cognitive function in older adults (Park et al., 2014).

The key is to choose activities that are enjoyable and mentally challenging, as this combination is most effective in promoting cognitive health.

Avoid Smoking and Limit Alcohol

Smoking and excessive alcohol consumption can accelerate cognitive decline and increase the risk of dementia. Smoking reduces blood flow to the brain and can lead to the development of vascular problems that impair cognitive function. Excessive alcohol intake can cause brain shrinkage and damage brain cells. This is such a shame for me to read, I blimmin’ well love gin (and the rest!).

Quitting smoking and moderating alcohol consumption are crucial steps in protecting brain health. According to a study published in The Lancet, smoking cessation and limiting alcohol intake are among the most effective lifestyle changes for reducing the risk of dementia (Livingston et al., 2020).

Stay Hydrated

Dehydration can affect cognitive function and overall brain health. The brain is composed of about 75% water, and staying hydrated is essential for maintaining concentration, alertness, and short-term memory. Even mild dehydration can impair cognitive performance.

Ensure you drink enough water throughout the day, especially if you are physically active or live in a hot climate. Carrying a water bottle and setting reminders can help you maintain adequate hydration levels.

Regular Health Check-Ups

Regular health check-ups are important for identifying and managing conditions that can affect cognitive health, such as hypertension, diabetes, and high cholesterol. Managing these conditions effectively can reduce the risk of cognitive decline.

Routine check-ups allow for early detection and intervention, which can significantly improve outcomes. According to research published in the Journal of the American Medical Association, managing cardiovascular risk factors through regular medical care can reduce the incidence of cognitive decline (Gorelick et al., 2011).


Protecting against cognitive decline involves a multifaceted approach that includes staying mentally active, exercising regularly, maintaining a healthy diet, getting enough sleep, managing stress, staying socially connected, learning new skills, avoiding harmful substances, staying hydrated, and keeping up with regular health check-ups. By incorporating these strategies into your daily life, you can significantly reduce the risk of cognitive decline and enjoy a sharp and healthy mind well into your later years. This is great news for all of us and fills me with lots of hope!


Barnes, L. L., Mendes de Leon, C. F., Wilson, R. S., Bienias, J. L., & Evans, D. A. (2004). Social resources and cognitive decline in a population of older African Americans and whites. American Journal of Public Health, 94(12), 2308-2315.

Gorelick, P. B., Scuteri, A., Black, S. E., DeCarli, C., Greenberg, S. M., Iadecola, C., … & Seshadri, S. (2011). Vascular contributions to cognitive impairment and dementia: a statement for healthcare professionals from the American Heart Association/American Stroke Association. Stroke, 42(9), 2672-2713.

Hölzel, B. K., Carmody, J., Vangel, M., Congleton, C., Yerramsetti, S. M., Gard, T., & Lazar, S. W. (2011). Mindfulness practice leads to increases in regional brain gray matter density. Psychiatry Research: Neuroimaging, 191(1), 36-43.

Livingston, G., Huntley, J., Sommerlad, A., Ames, D., Ballard, C., Banerjee, S., … & Mukadam, N. (2020). Dementia prevention, intervention, and care: 2020 report of the Lancet Commission. The Lancet, 396(10248), 413-446.

Park, D. C., Lodi-Smith, J., Drew, L., Haber, S., Hebrank, A., Bischof, G. N., & Aamodt, W. (2014). The impact of sustained engagement on cognitive function in older adults: the Synapse Project. Psychological Science, 25(1), 103-112.

Scarmeas, N., Stern, Y., Mayeux, R., Manly, J. J., Schupf, N., & Luchsinger, J. A. (2006). Mediterranean diet and mild cognitive impairment. Archives of Neurology, 66(2), 216-225.

Sofi, F., Valecchi, D., Bacci, D., Abbate, R., Gensini, G. F., Casini, A., & Macchi, C. (2011). Physical activity and risk of cognitive decline: a meta-analysis of prospective studies. Journal of Internal Medicine, 269(1), 107-117.

Spira, A. P., Gamaldo, A. A., An, Y., Wu, M. N., Simonsick, E. M., Bilgel, M., … & Resnick, S. M. (2013). Self-reported sleep and β-amyloid deposition in community-dwelling older adults. JAMA Neurology, 70(12), 1537-1543.

Wilson, R. S., Segawa, E., Boyle, P. A., Anagnos, S. E., Hizel, L. P., & Bennett, D. A. (2013). The influence of cognitive decline on well-being in old age. Psychology and Aging, 28(2), 304-313.

By following these scientifically supported strategies, you can take control of your cognitive health and ensure that your brain remains sharp and resilient as you age.

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