Kevin G. Parker, D.C. -Adjust2it

12/22/2025

"Your joints stay healthier when you move them.
Stiffness fades when mobility grows.

This is not motivation. it’s biology.

Synovial joints are nourished by motion.
Movement circulates synovial fluid, delivering oxygen and nutrients to cartilage that has no direct blood supply. When joints are still, that nourishment slows. When they move, they thrive.

Regular low-load movement
-maintains cartilage integrity
-improves range of motion
-reduces chronic pain and inflammation
-strengthens the muscles that protect joints

Stiffness isn’t a sign of aging it’s often a sign of underuse.

Gentle mobility, walking, controlled strength and full-range movement remind your nervous system that motion is safe. Over time, fear softens. Confidence returns. Pain often loosens its grip.

You don’t need extremes.
You need consistency.

Because motion doesn’t just preserve joints.
It preserves independence.
Confidence.
The ability to live fully in your body.

Motion fuels life."

Your joints stay healthier when you move them.
Stiffness fades when mobility grows.

This is not motivation. it’s biology.

Synovial joints are nourished by motion.
Movement circulates synovial fluid, delivering oxygen and nutrients to cartilage that has no direct blood supply. When joints are still, that nourishment slows. When they move, they thrive.

Regular low-load movement
-maintains cartilage integrity
-improves range of motion
-reduces chronic pain and inflammation
-strengthens the muscles that protect joints

Stiffness isn’t a sign of aging it’s often a sign of underuse.

Gentle mobility, walking, controlled strength and full-range movement remind your nervous system that motion is safe. Over time, fear softens. Confidence returns. Pain often loosens its grip.

You don’t need extremes.
You need consistency.

Because motion doesn’t just preserve joints.
It preserves independence.
Confidence.
The ability to live fully in your body.

Motion fuels life.

12/22/2025

"Please... don't fear injury... fear what happens if we are not active. Our bodies were engineered over millennia to move. We suffer terribly if we don't move.

Exercise is the risk you take to avoid the consequences of being still.

Sure, injuries can happen. The actual rate of injury from exercise is very low. The research is very clear on this topic. The risks of doing nothing and being still are far greater.

So... embrace activity. Let your body function the way it was designed to. Please use professionals if needed to ensure you are appropriately guided as you develop your routines. But don't think that being still is safer than being fit and active."

Please... don't fear injury... fear what happens if we are not active. Our bodies were engineered over millennia to move. We suffer terribly if we don't move.

Exercise is the risk you take to avoid the consequences of being still.

Sure, injuries can happen. The actual rate of injury from exercise is very low. The research is very clear on this topic. The risks of doing nothing and being still are far greater.

So... embrace activity. Let your body function the way it was designed to. Please use professionals if needed to ensure you are appropriately guided as you develop your routines. But don't think that being still is safer than being fit and active.

12/22/2025

"Reflection matters — but action matters more.

Jack believed yesterday doesn’t define you… what you do next does.

Rest if needed. Reset your mindset. Prepare to move forward."

Reflection matters — but action matters more.

Jack believed yesterday doesn’t define you… what you do next does.

Rest if needed. Reset your mindset. Prepare to move forward.

12/18/2025

Thank you Mom!

12/17/2025

Thank you Gregg S. retired LAPD.
Happy early 70th Bday later in Jan.

12/17/2025

Way ahead of his time!

Before selectorized machines filled gyms… Jack LaLanne built one.

Long before fitness was an industry, Jack LaLanne was inventing solutions so everyone could train safely and effectively. One of his most overlooked contributions?

The weight selector machine.

Jack understood that strength training shouldn’t be limited to bodybuilders or the fearless. He believed everyday people — men, women, beginners, older adults — needed a way to build strength without intimidation or injury.

So he engineered equipment that allowed:
• Quick weight changes
• Safer resistance training
• Consistency over chaos
• Strength for life, not just for sport

Today, selectorized machines are standard in gyms around the world. Most people use them without knowing the truth:

Jack LaLanne didn’t just inspire fitness — he engineered it.

That’s legacy.

That’s foresight.

That’s Jack.

12/15/2025

Happy 100th birthday to Dick Van D**e. Dick was born in West Plains Missouri, and during World War Two he was stationed at Camp Crowder in Neosho, Mo.

12/11/2025

12/10/2025

Dr. John Campbell 3.28 Million subscribers. This Vit D post is 2 days old with 496,000 views.
A Statistical Error in the Estimation of the Recommended Dietary Allowance for Vitamin D (2014)

US, nearly 15 times too low

UK, 0ver 22 times too low

IOM calculation

600 units (15 mcg), 97.5% of people will achieve
63 nmol/L

(25.2 ng/ml)

Correct calculation

600 units (15 mcg), 97.5% of people will achieve
26.8 nmol/L

(10.7 ng/ml)

Requirements based on correct calculation

8,895 IU of vitamin D per day may be needed to accomplish that 97.5% of individuals achieve serum 25(OH)D values of 50 nmol/L or more.
The "Average" vs. "Individual" Mistake

Canada studies

Diet gives 232 IU of vitamin D per day

Institute of Medicine (IOM), RDA vitamin D 600 IU per day, (aged 1 to 70 years)

Now called the National Academy of Medicine
https://nam.edu

UK is even worse
https://www.nhs.uk/conditions/vitamin...
UK, 400 iu or 10 mcg
600 iu per day to achieve serum 25-hydroxyvitamin D (25(OH)D) levels of 50 nmol/L or more in 97.5% of healthy individuals.

Levels of 50 nmol/L or more have been shown to benefit bone health and to prevent disease and injury.

The IOM based their RDA for vitamin D on an aggregation of 10 supplementation studies, (32 dose protocols)

carried out during winter months, at locations above 50th parallel

IOM regressed the 32 study averages, dose: plasma ratio

On the basis of this, IOM estimated that 600 IU of vitamin D would achieve an average 25(OH)D level of 63 nmol/L

Requirements based on correct calculation

8,895 IU of vitamin D per day

This dose is well in excess of the current RDA of 600 IU per day and the tolerable upper intake of 4000 IU per day.

The public health and clinical implications of the miscalculated RDA for vitamin D are serious.

With the current recommendation of 600 IU, bone health objectives and disease and injury prevention targets will not be met.

We recommend that the RDA for vitamin D be reconsidered to allow for appropriate public health and clinical decision-making.

The Big Vitamin D Mistake

https://pmc.ncbi.nlm.nih.gov/articles...

Explanation of the statistical error

The "Average" vs. "Individual" Mistake

The Institute of Medicine’s goal was to find a vitamin D dose that ensures 97.5% of individual people reach a healthy blood level (50 nmol/L).

The statistical error occurred because the IOM analysed the averages of different studies rather than the data of individual participants.

They looked at 10 studies and took the average blood levels achieved in those studies.

They calculated a statistical range (Confidence Interval) based on those averages.

They found that with 600 IU, 97.5% of the study averages would hit the target.

The Problem

There is much less variation between "averages" than there is between "individuals."

By using the averages, the IOM accidentally "smoothed out" the data.

They assumed that if the average person in a study was fine, then almost everyone was fine.

The Classroom Analogy

Imagine you want to ensure every student passes a test.

The IOM method

They looked at the average scores of 30 different classrooms. They set a curriculum so that 97.5% of classrooms would have a passing average.

The Reality

Even in a classroom with a passing average, there are students who fail.

The Correction

To ensure 97.5% of students pass, you have to look at the lowest-performing students, not the class average.

The Consequence

When the authors of this paper re-calculated the numbers using the variation of individuals (rather than study averages),

they found that the current RDA of 600 IU does not cover 97.5% of the population.

Instead, it only ensures that 97.5% of people reach a blood level of 26.8 nmol/L (far below the target of 50 nmol/L).

To actually get 97.5% of the population to the healthy target of 50 nmol/L, the math suggests you would need a dose of 8,895 IU per day.
https://www.youtube.com/watch?v=AtoxkK7MeKc

A Statistical Error in the Estimation of the Recommended Dietary Allowance for Vitamin D (2014)https://pmc.ncbi.nlm.nih.gov/articles/PMC4210929/US, nearly 15...

12/10/2025

So, rise.
Lift.
Stretch.
Run.

Even if it’s just to your own beat.
Every bead of sweat is a declaration
You won’t be defined by years.
You will be defined by courage.

12/08/2025

Thank you, Donna H., for this fun articulated snowman!

Donna shared with me that while shopping with her husband, she spotted this bendy, moveable snowman and immediately connected with it because of her scoliosis. She held it up, put a bent “S” to the snowman, and said to her husband, “This is me before Dr. Parker… and this is me after Dr. Parker.” They both had a good laugh right there in the store—and decided to buy one for me as well.

Now, I can’t “fix” scoliosis, but I can help the spine function better through motion and with the use of my articulated flexion-distraction table that can bend sideways as well. Since joints and discs have no direct blood supply, they rely on movement for lubrication and nourishment. As I always say: Motion is Lotion.

Thank you, Donna, for the thoughtful and genuinely fun gift. It made my day. 🎄