Prevention Rather Than Cure: How Childhood, Chronic Stress and Lifestyle Shape Lifelong Health
As a mental health nurse of more than 24 years and a mother of three, I've always believed in one simple philosophy: prevention is better than cure.
For as long as I can remember, I've been fascinated by what helps people stay healthy, not just physically, but mentally and emotionally too.
I've always tried to take care of my body as best I could (although, if I'm honest, my late teens and early twenties weren't always the healthiest years! Growing up in Scotland probably had something to do with that!).
Yoga became part of my life in my mid-twenties and while pregnant with my first child, I completed my yoga teacher training in 2007. I was captivated by its philosophy and by how much calmer, stronger and more balanced I felt after long weeks of shift work. Yoga and meditation became more than exercise, they became ways to reset both my body and mind.
This year I turned 50, something that still surprises me. Looking back, I truly believe the healthy habits I developed in my twenties have helped me remain physically healthy, flexible and resilient today. I'm certainly not perfect (my upper body strength could definitely use some work!), but I've come to appreciate that health isn't about perfection, it's about the small choices we make consistently over time.
Prevention Is About More Than Diet and Exercise
When we think about preventing illness, we often focus on eating well, exercising regularly, drinking enough water and getting quality sleep. These are all incredibly important.
But after decades working in mental health, I've come to believe that our emotional wellbeing is just as important.
Our relationships.
Our sense of safety.
The way we respond to stress.
Feeling connected to our community.
Having purpose and meaning in our lives.
These factors all influence our mental and physical health in ways we are only beginning to fully understand.
Creating healthy routines, learning how to regulate stress and consistently showing up for ourselves even during life's difficult seasons, helps build a strong foundation for lifelong wellbeing.
What Is Chronic Stress?
Stress itself isn't the problem.
In fact, stress is designed to protect us.
When your brain perceives a threat whether that's a near miss while driving, a frightening situation or an important deadline, it activates your body's stress response.
The hypothalamus signals the release of adrenaline and cortisol, hormones that prepare your body to respond quickly. Your heart beats faster, blood pressure rises, blood sugar increases and digestion temporarily slows so your body can focus its energy on survival.
This response is incredibly effective when the danger passes quickly.
The challenge arises when our brain believes we're under constant threat.
Financial pressures.
Relationship conflict.
Workplace stress.
Caring responsibilities.
Ongoing uncertainty.
Instead of switching off, our stress response remains activated for weeks, months or even years.
Over time, chronic stress can contribute to:
Sleep disturbances
Digestive issues
Weakened immune function
Increased inflammation
Elevated cardiovascular risk
Anxiety and depression
Difficulty concentrating and making decisions
Emotional exhaustion and burnout
Our nervous system remains in a constant state of fight, flight, freeze or fawn, making it increasingly difficult for the body to return to balance.
This is why preventing and treating chronic stress isn't simply about feeling better, it's an important part of protecting our long-term health.
Could Childhood Experiences Influence Adult Health?
One area of research that has fascinated me throughout my career explores how our earliest life experiences can shape our future health.
This doesn't mean our childhood determines our future.
Far from it.
But it does suggest that our early years help build the biological and emotional foundations on which lifelong health develops.
If we truly want to focus on prevention rather than simply treating illness later in life, perhaps we need to begin much earlier.
The ACE Study: A Turning Point in Understanding Health
One of the most influential pieces of research in this field is the Adverse Childhood Experiences (ACE) Study, conducted by Dr Vincent Felitti and Dr Robert Anda.
The findings fundamentally changed the way healthcare professionals understand the relationship between childhood experiences and adult health.
The researchers discovered what is known as a dose-response relationship.
In simple terms, the greater the number of adverse childhood experiences a person had, the greater their likelihood of developing both mental and physical health challenges later in life.
Higher ACE scores were associated with an increased risk of:
Depression
Anxiety
Substance dependence
Smoking
Obesity
Cardiovascular disease
Chronic lung disease
Diabetes
Suicide attempts
Premature death
When I first learned about this research years ago, I found it remarkable.
I could understand how childhood trauma might contribute to anxiety or depression later in life.
But physical illness?
Heart disease?
Diabetes?
That challenged everything I thought I knew.
What Counts as an Adverse Childhood Experience?
The ACE Study examined experiences before the age of 18, including:
Physical abuse
Emotional abuse
Sexual abuse
Emotional neglect
Physical neglect
Domestic violence
Living with someone experiencing mental illness
Substance misuse within the household
Parental separation or divorce
A household member being incarcerated
Each experience contributed to an individual's ACE score.
Researchers found that higher scores were linked with greater health risks across the lifespan.
However, the picture isn't quite that simple.
Genes or Environment? The Answer Is Both.
When I first read the ACE research, I found myself wondering:
What about genetics?
If heart disease, diabetes or other illnesses already run in a family, how much of that risk comes from inherited genes rather than childhood experiences?
Today, research suggests the answer is both.
Scientists now recognise something called gene-environment interaction.
Our genes may influence our vulnerability to certain conditions, while our environment influences whether, when and how those genes are expressed.
In other words, we don't inherit our future, we inherit possibilities.
Our relationships, lifestyle, stress levels and environment all continue shaping our health throughout life.
What About Intergenerational Trauma?
Another fascinating area of research is intergenerational trauma.
Sometimes trauma doesn't begin with us.
Stress, adversity and unresolved trauma experienced by previous generations can influence parenting patterns, emotional regulation, attachment and even biological stress responses within families.
This doesn't mean we're destined to repeat history.
Rather, it reminds us how important awareness and healing can be, not only for ourselves but for future generations.
The Good News: Your Brain Can Change
This is one of my favourite parts of modern neuroscience.
Our brains remain adaptable throughout life.
This ability is known as neuroplasticity.
Although our early experiences influence us, they do not define us forever.
With support, self-awareness and consistent practice, we can develop healthier ways of thinking, responding and relating to ourselves and others.
We can learn new coping strategies.
We can challenge limiting beliefs.
We can regulate our nervous system.
We can strengthen healthier habits.
And we can create new pathways that support emotional and physical wellbeing.
It is never too late to make meaningful changes.
Protective Factors That Support Lifelong Health
One of the most encouraging findings from ACE research is that protective factors can significantly reduce the long-term effects of adversity.
Research consistently highlights the importance of:
One stable, caring adult relationship
Safe and predictable environments
Good quality sleep
Regular physical activity
Nutritious food
Emotional literacy
Strong social connections
Trauma-informed psychological support when needed
Stress regulation practices such as mindfulness, meditation, yoga and EFT
Resilience is not something we're simply born with.
It develops over time through supportive relationships, consistent care and environments that help us feel safe enough to grow.
Prevention Begins Today
Our DNA may influence vulnerability, but our childhood experiences, relationships, lifestyle, environment and daily habits all help shape our lifelong health.
The exciting part is that change is always possible.
Every healthy choice we make matters.
Every supportive relationship matters.
Every opportunity to regulate our nervous system matters.
Whether you're learning to manage chronic stress, working through past experiences or simply wanting to improve your overall wellbeing, remember that healing doesn't require perfection, it begins with one small step.
At Your Life Consultancy, I believe prevention starts with understanding ourselves, caring for our nervous system and creating healthier patterns that support both mental and physical wellbeing.
Because while we cannot change our past, we can absolutely influence the future we create.
References
Vincent Felitti, Robert Anda, et al. (1998). Relationship of Childhood Abuse and Household Dysfunction to Many of the Leading Causes of Death in Adults: The Adverse Childhood Experiences (ACE) Study. American Journal of Preventive Medicine.
Jack P. Shonkoff, W. Thomas Boyce & Bruce S. McEwen (2009). Neuroscience, Molecular Biology, and the Childhood Roots of Health Disparities: Building a New Framework for Health Promotion and Disease Prevention. JAMA.
Andrew Steptoe (2012). Stress and Health. International Encyclopedia of the Social & Behavioral Sciences.
