Behavior change with purpose: using science to live with better health and deeper peace

A new year is here. You don’t need a longer list of resolutions.
You need one honest question:

If I only improved one thing in my health over the next three months,
which one would give me more peace and more health?

At Dr. Dan Giving You Health (Dr. Dándote Salud) I’ve built this site around key pillars so we can look at your health as a whole (Parkinson et al., 2023):

• Preventive focus
• Conscious, healthy nutrition
• Regular movement and physical activity
• Restorative sleep
• Stress management
• Avoiding harmful substances
• Positive relationships and meaningful social connections
• Purpose and meaning in life

Today I’d like to invite you to reflect with me and use what we know from behavior-change science to choose your “one thing” for the first months of 2026 (Parkinson et al., 2023).

1. Why is change so hard… even when I truly want it?

If you’ve ever said:

• “I know what I should do, I just don’t do it.”
• “I start strong and then fall off.”
• “I’m scared to try again and fail.”

Here’s something important:
It’s not about laziness or weak willpower. Health habits are complex systems (Parkinson et al., 2023).

The good news is that behavior-change science gives us real guidance:

• Large studies suggest that a big share of chronic diseases can be prevented through lifestyle changes in food, movement, sleep, stress, substances, and relationships (Eyre et al., 2004; Parkinson et al., 2023).
• Feeling capable of changing (self-efficacy) is one of the strongest predictors of success. When your confidence grows, your chances of change grow (Frost et al., 2017).
• Having a deep sense of purpose – a reason to take care of yourself – is linked to lower cardiovascular risk and lower mortality across adulthood (Alimujiang et al., 2019; Hill & Turiano, 2014).
• Health conversations that focus on your values and your reasons for change (like in motivational interviewing) work better than lectures or blame (Lundahl et al., 2013; Frost et al., 2017).

So it’s not just about willpower.
It’s about aligning your mind, your environment, and your support system so change becomes possible (Parkinson et al., 2023).

2. What we know about changing health behaviors

2.1. Not everyone is in the same place: stages of change

A widely used model in lifestyle medicine is the Stages of Change model. You’re not “good” or “bad”; you’re simply in one of these phases (Parkinson et al., 2023):

1. Precontemplation – “I don’t think this is a problem; I’m not planning to change.”
2. Contemplation – “I know I should change, but I’m still on the fence.”
3. Preparation – “I’m ready to start in the next few weeks.”
4. Action – “I’ve already started making changes.”
5. Maintenance – “I’ve kept up this change for at least six months.”

You might be in action with exercise and in precontemplation with sleep, for example.
That’s why it’s so helpful to choose one single area to focus on (Parkinson et al., 2023).

2.2. Motivation that lasts: autonomy, competence, and connection

Self-determination theory tells us that the most durable motivation happens when (Parkinson et al., 2023):

• You feel autonomous: you’re choosing, not just obeying orders.
• You feel competent: you believe you can actually do it.
• You feel connected: you’re not alone; people around you support you.

When you add a sense of purpose (“I want to be present for my kids,” “I want to age with dignity”), change stops feeling like punishment and starts feeling like a gift (Alimujiang et al., 2019; Hill & Turiano, 2014; Parkinson et al., 2023).

2.3. Preventive visits: “I feel fine” is not the full story

Even if you feel well, a preventive visit with your primary care clinician can (Liss et al., 2021):

• Detect risk factors before they show symptoms.
• Update your vaccines and screening for cancer, blood pressure, diabetes, cholesterol, depression, and more.
• Help you build a concrete lifestyle plan that fits your real life (Hivert et al., 2016; Liss et al., 2021).

Research shows that general health checks improve detection of conditions, increase delivery of preventive services, and improve self-rated health and quality of life, even if they don’t always change overall mortality (Liss et al., 2021).

The point is not to “get checked just because,” but to use that visit as protected time to talk about what you want to change and how to do it realistically (Hivert et al., 2016; Liss et al., 2021).

3. How to choose your “one thing” for the next three months

Let’s get practical.
Here’s a simple step-by-step process (Parkinson et al., 2023).

Step 1: Pick one pillar

Look at this list and notice what pulls your attention first:

• Food
• Movement
• Sleep
• Stress
• Substances (tobacco, alcohol, others)
• Relationships
• Purpose / meaning
• Prevention (seeing your family doctor)

Ask yourself:

“If I only improved one of these areas in the next 3 months, which one would give me more peace and more health?”

Write it down. No judgment.

Step 2: Find your stage of change

For that area, which sentence feels most true?

• “I don’t see a problem; I’m not planning to change.” → Precontemplation
• “I know I should change, but I’m not ready yet.” → Contemplation
• “I’m ready to start soon.” → Preparation
• “I’ve already started changing.” → Action
• “I’ve been doing this for more than 6 months.” → Maintenance

There’s no right or wrong.
This just helps us choose the right next step (Parkinson et al., 2023).

Step 3: Connect with your “why”

Beyond “I want to lose weight” or “I want better sugar numbers,” ask:

• Who do I want to be healthy for?
• What activities do I want to keep enjoying in my 60s, 70s, or 80s?
• If my body could talk, what would it be asking for today?

Write one sentence starting with:

“I want to change this because…”

The more personal and concrete, the better. That’s your internal engine (Alimujiang et al., 2019; Hill & Turiano, 2014).

Step 4: Turn your wish into a SMART goal

SMART goals are:

• S: Specific
• M: Measurable
• A: Achievable
• R: Relevant
• T: Time-bound

Examples:

• Instead of: “I’ll eat healthier”“For the next 3 months, I’ll add 2 servings of vegetables to lunch at least 5 days a week.”
• Instead of: “I’ll exercise more”“For the next 4 weeks, I’ll walk 20 minutes after dinner 3 days per week: Monday, Wednesday, Friday.”
• Instead of: “I need more sleep”“This month, I’ll turn off screens at 10:30 pm Sunday through Thursday to be in bed by 11:00 pm.”

The goal doesn’t have to be impressive; it has to be doable.
A small goal you actually achieve beats a heroic plan you abandon in a week (Frost et al., 2017).

Step 5: Build your support team

Think in three layers:

1. Your close circle
   • Who can encourage you?
   • Who could you share your goal with for accountability?
2. Your health care team
   • Schedule a preventive visit with your family doctor or primary care clinician.Bring these, written down:
     • Your SMART goalYour questionsYour fears or barriers
   You might say:“This year I want to focus on my sleep / food / activity.
   I’d like us to build a realistic plan together.”A good clinician is not only there to prescribe; they’re also there to listen, partner, and coach you through change (Hivert et al., 2016).
3. Extra supports
   • Walking groups, community classes, group visits, professionally moderated online groups.
   • In some cases, working with a board-certified health and wellness coach can help you stay on track between visits (Hivert et al., 2016).

Step 6: Expect setbacks… without giving up

No serious behavior-change model assumes a straight line.
It’s normal to:

• Have “bad weeks”
• Slide back a stage
• Feel your motivation dip

When that happens:

• Ask: “What can I learn from this?”
• Adjust your goal to make it more realistic.
• Celebrate any part of the habit you managed to keep.

Setbacks are not failure; they’re information. They help you design a lifestyle that actually works for you (Frost et al., 2017; Parkinson et al., 2023).

4. What if you really committed to one change?

Picture this: you choose one pillar today.
Just one.

Three months from now:

• Your blood pressure and energy are a little better.
• Your regular walks give you half an hour to clear your mind and ease stress.
• You sleep more deeply and feel less irritable.
• You feel more able to say “yes” to what nourishes you and “no” to what drains you.

And maybe most important:
You start seeing yourself not as “a lost cause,” but as someone who can build health, one day at a time. (Parkinson et al., 2023)

Studies from long-lived populations, like the so-called Blue Zones, show that people who live longer and better don’t do it through one giant decision. They do it through small daily habits guided by purpose, community, and environment (Eyre et al., 2004; Parkinson et al., 2023).

This year, even if you feel healthy, I invite you to:

• Choose one area to care for more intentionally.
• Schedule your preventive visit with your primary care clinician (Liss et al., 2021).
• Arrive with a SMART goal, a clear “why,” and a willingness to work as a team (Hivert et al., 2016).

At Dr. Dan Giving You Health (Dr. Dándote Salud) we believe that when you give yourself health, you give yourself life.
You don’t have to do everything today.
You only have to decide where you’ll start.

Scientific sources

(to expand your knowledge )

• Parkinson MD, Stout R, Dysinger W. Lifestyle Medicine: Prevention, Treatment, and Reversal of Disease. Med Clin North Am. 2023.
• Eyre H, Kahn R, Robertson RM. Preventing Cancer, Cardiovascular Disease, and Diabetes: A Common Agenda.CA Cancer J Clin. 2004.
• Hivert MF, Arena R, Forman DE, et al. Medical Training to Achieve Competency in Lifestyle Counseling.Circulation. 2016.
• Lundahl B, Moleni T, Burke BL, et al. Motivational Interviewing in Medical Care Settings: A Systematic Review and Meta-Analysis. Patient Educ Couns. 2013.
• Frost H, Campbell P, Maxwell M, et al. Effectiveness of Motivational Interviewing on Adult Behaviour Change.PLoS One. 2017.
• Alimujiang A, Wiensch A, Boss J, et al. Association Between Life Purpose and Mortality Among US Adults Older Than 50 Years. JAMA Netw Open. 2019.
• Hill PL, Turiano NA. Purpose in Life as a Predictor of Mortality Across Adulthood. Psychol Sci. 2014.
• Liss DT, Uchida T, Wilkes CL, Radakrishnan A, Linder JA. General Health Checks in Adult Primary Care: A Review. JAMA. 2021.

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