Dr. Z Age Fit

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03/17/2026

Most people know we lose flexibility as we age.

But very few understand why.

At a cellular level, three key things are happening:
1. Extracellular matrix changes
Hydration decreases → tissues become stiffer
2. Collagen changes
Less turnover + more cross-linking → reduced mobility
3. Elastin decreases
Less ability for tissue to rebound after movement

The result?

Your body becomes progressively more rigid over time.

But here’s the important part:

These changes can be slowed — and in some cases improved — with the right inputs.

I’ll cover exactly how to combat this in the next video.

Save this for reference.

Comment FLEXIBILITY if you want to stay mobile as you age.

03/16/2026

When Jamie Foxx spoke at a recent awards ceremony, he said something powerful:

Six months ago he couldn’t even walk across the stage.

Now he can.

We don’t know the exact medical event he experienced.

But what we do know is that he was very physically fit before it happened.

That matters more than people realize.

After the age of 40, health isn’t just about looking good.

It’s about preparing for the hits in life that eventually come for all of us:

• Illness
• Surgery
• Injury
• Major stress

Your baseline fitness often determines how well you recover.

The stronger and healthier you are going into a crisis, the better your body can respond and rehabilitate.

Don’t wait for a health scare to start taking your physical health seriously.

Start now.

Save this as a reminder.

03/14/2026

Osteoarthritis affects millions of people worldwide.

And paradoxically, one of the best treatments is something many people avoid…

Exercise.

Movement improves joint health in several ways:

• Strengthens the muscles that support the joint
• Increases synovial fluid flow (the joint’s nutrient source)
• Improves bone density
• Keeps the joint capsule flexible and mobile

In other words, movement nourishes the joint.

A simple guideline that helps many people:

20–30 minutes of low-impact exercise, 4–5 days per week.

Walking, cycling, swimming, or incline treadmill work are all great options.

Save this for later and comment JOINTS if you want more strategies to keep your joints healthy as you age.

03/04/2026

Your 79-Year-Old Self Is Watching. Here’s Your Wake-Up Call.




03/03/2026

What’s the best cardio to optimize VO₂ max after 45?

People get stuck in the debate:

Zone 2 for 90 minutes
HIIT for 20 minutes
Long sessions vs short bursts

But here’s what I’ve learned — from my patients and myself:

The best cardio is the one you’ll actually do.

If 90 minutes sounds ideal but unrealistic, you won’t stick with it.

If 20 minutes of intervals fits your life, that wins.

Consistency > perfection.

But here’s the key:

You must push outside your comfort zone.

Adaptation only happens when you stress the system.

Find something:
• You enjoy
• You can repeat
• That challenges you

Save this as a reminder.

Comment CARDIO if you want a simple structure that works after 45.

03/02/2026

Your 79-Year-Old Self Is Watching. Here’s Your Wake-Up Call.










03/02/2026

Is a healthy mind more important than a healthy body?

I asked an 80-year-old patient what the most important lesson he’s learned about aging was.

He said:

“If you have a healthy body, the mind follows.”

When you exercise, your muscles release signaling molecules called myokines.

You increase brain-derived neurotrophic factor (BDNF), which supports cognitive health.

Movement changes brain chemistry.

But you can’t “think” your way out of poor physiology.

An unhealthy body will eventually pull the mind down with it.

As we age, physical health becomes the foundation.

Dial in the body — and the mind often rises to meet it.

Save this.

Comment BODY or MIND — I’m curious what you believe.

02/27/2026

Do I take vitamins every day?

Yes.

Here’s my personal regimen:

• Multivitamin (different ones depending on fasting vs fed)
• Vitamin D3 + K2 (15–20k IU, monitored twice yearly)
• Zinc
• Magnesium (400mg)
• NAD supplement
• Fish oil

But here’s what matters more than the exact stack:

Consistency.

You can design the “perfect” supplement routine…
But if it upsets your stomach or overwhelms you, you won’t stick with it.

Aging well is about sustainability.

Find what you tolerate.
Monitor it.
Be consistent.

Save this for reference.

Comment STACK if you want deeper breakdowns on any of these.

02/27/2026

“If there’s no data, it must not work.”

That sounds logical.

But medicine doesn’t only run on physiology.
It also runs on incentives.

For years, certain spine procedures were covered in the neck and low back — but not in the thoracic spine.

Same anatomy.
Same nerve function.
Same mechanism.

But “not enough data.”

Why?

Because no one funded the study.

Eventually, coverage changed.
The anatomy never did.

The lesson:

“No data” doesn’t always mean “not true.”
Sometimes it means “not profitable.”

As we move into discussions about nutrition and supplements, keep this framework in mind.

Save this.

Comment DATA if you want more clarity around how medical evidence actually works.

02/26/2026

“If there’s no data, it must not work.”

That’s what we’re taught to believe.

But here’s what I’ve seen in 20 years of practice:

Sometimes there’s no data simply because there’s no funding.

I perform procedures that worked anatomically and clinically for years — but weren’t covered by insurance because “there wasn’t enough data.”

Not because they didn’t work.

Because no one paid to study them.

Eventually, coverage changed.

The anatomy never did.

The takeaway:

“No data” doesn’t always mean “not true.”
Sometimes it means “not profitable.”

As we talk about nutrition and supplements in future videos, keep this framework in mind.

Save this and comment DATA if you want deeper breakdowns on how medical evidence actually works.

Address

1859 S TOPAZ Way STE 100
Meridian, ID
83642

Telephone

+12084885834

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