• Skip to primary navigation
  • Skip to main content
  • Skip to footer
Cardiac Krock

Cardiac Krock

your trusted source for expert heart health advice

  • Meet Dr. Krock
  • The Rhythm Report
  • RECOMMENDED PRODUCTS
  • Nav Social Menu

    • Instagram
    • LinkedIn
    • TikTok
    • YouTube
_DSC0455 copy

Dr. Krock’s recommended items for heart health:

_DSC0435 copy

Trusted Tools to Monitor Your Heart at Home

Heart issues don’t always show up in the doctor’s office—and symptoms like fatigue or palpitations can come and go. That’s why Dr. Marc Krock recommends select at-home devices to help patients track their heart rhythms in real time, catch irregularities early, and take the guesswork out of monitoring. Shop his trusted tools to stay proactive and informed—right from home.

  • Apple Watch Series 11

    Apple Watch Series 11

    Buy product
  • Fitbit Sense 2

    Fitbit Sense 2

    Buy product
  • Heart Rate Monitor Chest Strap

    Heart Rate Monitor Chest Strap

    Buy product
  • KardiaMobile 6L or 6L Max

    KardiaMobile 6L or 6L Max

    Buy product
  • Samsung Galaxy Watch 7

    Samsung Galaxy Watch 7

    Buy product
  • WEIGHTED VEST

    WEIGHTED VEST

    Buy product

Recommended Defibrillators for Home or Office

In a cardiac emergency, every second counts. Having a defibrillator (AED) on hand can mean the difference between life and death—especially for those with known heart conditions or a history of sudden cardiac events. Dr. Marc Krock recommends these reliable, easy-to-use AEDs for homes, offices, gyms, or community spaces where fast action could save a life.

  • HeartStart Philips OnSite AED Defibrillator

    HeartStart Philips OnSite AED Defibrillator

    Buy product

Recommended Supplements

  • Beetroot and Grape Seed Extract

    Beetroot and Grape Seed Extract

    Buy product
  • CoQ10

    CoQ10

    Buy product
  • EPA

    EPA

    Buy product
  • Folic Acid

    Folic Acid

    Buy product
  • Omega 3 Fish Oil

    Omega 3 Fish Oil

    Buy product
  • OMEGA 3 FISH OIL

    OMEGA 3 FISH OIL

    Buy product

Footer

Visit Us


Dr. Krock’s cardiologist practice in McKinney and Frisco, Texas.

THE HEART SMART GROUP WEBSITE

JOIN DR. KROCK ON INSTAGRAM

cardiackrock

Heart health education from a real cardiologist. Learn the signs of AFib, use smart devices right, and avoid the ER with early detection.

If you're over 50 and dealing with high cholestero If you're over 50 and dealing with high cholesterol, this might surprise you… 

You can lower it naturally with the right approach.

It’s not just “eat better and move more.”
It’s about doing it correctly and consistently:

✔️ Mediterranean-style eating
✔️ More plant-based proteins
✔️ Healthy omega-3s
✔️ Less fried food & red meat
✔️ Daily steady movement (walking, treadmill, etc.)
✔️ PLUS adding high-intensity training

When done right, this can lower your cholesterol by 20–30% and reduce your risk of heart attack and stroke.

Small changes. Big impact.

If you live in the North Texas area, visit theheartsmartgroup.com to make an appointment with Dr. Krock and his team. He has offices in Frisco and McKinney, TX.
You don’t need to chase a number to get results. You don’t need to chase a number to get results.

If you’re on medications like beta blockers, your heart rate is supposed to stay lower. That’s the job of the medication.

So what should you focus on instead?

Consistency
30 to 45 minutes of steady movement - showing up, even when the numbers don’t look right

The benefit is still there. In many cases, it’s even better because your heart is already being supported.

This is where a lot of people get frustrated and quit too early. Don’t.

Shift your focus from heart rate to duration and effort. That’s where progress happens.

And if you’re unsure how your medications play into your workouts, don’t guess.

Don’t be afraid to ask your cardiologist about the details on how these medications can affect you.
Most people don’t stop their statin because they w Most people don’t stop their statin because they want to.
They stop because they feel worse on it.

Muscle aches are one of the biggest reasons.

Here’s what a lot of people don’t realize. Statins can lower your natural CoQ10 levels and CoQ10 plays a key role in how your muscles and heart produce energy.

So when levels drop, you may feel:
Muscle soreness
Fatigue
Low energy

This is why we often add CoQ10 1000-2000 mg daily alongside a statin, not instead of it.

What it can help with:
Reduce muscle aches
Support energy at the cellular level
Support heart muscle function

This is a simple step that can help you stay on the medication that’s protecting your heart.
See the exact product I recommend to my patients at CardiacKrock.com
Your heart rarely goes from perfectly healthy to a Your heart rarely goes from perfectly healthy to a major event overnight.

More often, people notice small changes first - getting winded more easily, unusual fatigue, or pressure in the chest with activity. These symptoms don’t always mean something serious, but they’re signals worth paying attention to.

If something feels different than your normal baseline, getting it checked early can make all the difference.
Statins are one of the most common ways to lower c Statins are one of the most common ways to lower cholesterol—but they’re not the only option.

From lower starting doses to more potent choices like atorvastatin and rosuvastatin, treatment is always adjusted based on what your body responds to.

And if statins don’t work for you?
There are other effective options, like newer injectable treatments that many patients tolerate even better.

The key is this: there’s always a strategy.
The right treatment is the one that’s tailored to you.
You pass out and wake up a few seconds later… and You pass out and wake up a few seconds later… and assume it was nothing.

Many people think fainting is just dehydration, stress, or “standing up too fast.” And sometimes it is. But in cardiology we also see patients who passed out because of a dangerous heart rhythm.

Your heart’s electrical system can suddenly go too fast or too slow, causing the brain to temporarily lose blood flow. The heart may reset on its own, you wake up, and it feels like the episode passed.

But in some cases that episode was actually a serious rhythm problem, including ventricular arrhythmias that can lead to cardiac arrest.

If you’ve had unexplained fainting or repeated passing out, it’s important to get evaluated. A heart monitor can often detect rhythm problems that would otherwise go unnoticed.

Sometimes what feels like “nothing” is your heart trying to tell you something important.
Follow on Instagram

Copyright © 2026 Cardiac Krock · Design by Great Oak Circle