Dr. Z Age Fit

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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.

02/26/2026

“Vitamins are just expensive urine.”

I hear this all the time.

But let’s break this down logically.

If the absence of a vitamin causes disease…
And restoring it prevents or fixes that disease…

Then supplementation has value.

We know:

• Vitamin D deficiency → bone loss + fractures
• Vitamin B deficiency → anemia + neuropathy + cognitive decline
• Vitamin C deficiency → scurvy + poor wound healing

So the real question becomes:

Why would you risk deficiency?

For me, prevention is worth far more than $1.50 per day.

In my next video, I’ll share exactly which vitamins I take and why.

Save this and comment VITAMINS if you want the breakdown.

02/25/2026

The number one cause of preventable disability in my clinic is not genetics.

It’s lack of resistance training.

I’ve seen two very different paths:

One group slowly shrinks.
Falls increase.
Fractures happen.
Independence declines.

The other group trains consistently.
They stay durable.
Mobile.
Energetic.
Even when accidents happen, recovery is faster.

Here’s a simple test:

Stand up from a chair 10 times without using your hands.

If that’s difficult, it’s a signal — not something to ignore.

Resistance training is one of the most powerful tools we have to prevent disability as we age.

Save this as a reminder.

Comment STRONG if you’re committing to this.

02/19/2026

Should Women Take Hormones After Menopause? After menopause, estrogen, progesterone, and testosterone levels drop significantly.
This can impact bone density, lean muscle mass, mood, and overall vitality.
For many women, hormone balance can improve quality of life and long-term health.
It’s a personal decision — but one worth discussing with your physician.
Healthy aging often starts with hormonal balance.

02/18/2026

If Vitamin Deficiency Causes Disease, Should You Supplement?
(Comment “Newsletter” and I’ll send you the link to sign up)
Vitamins are required for proper cellular function.
Deficiencies in vitamin D, C, and B cause real disease.
If absence creates dysfunction — and replacement restores function — the logic is straightforward.
For many adults over 45, supplementation can be part of a practical health strategy.
Next, I’ll walk through my personal regimen.

Address

1859 S TOPAZ Way STE 100
Meridian, ID
83642

Telephone

+12084885834

Website

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