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Cardiac Krock

Cardiac Krock

your trusted source for expert heart health advice

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Dr. Krock’s recommended items for heart health:

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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
  • VITAMIN K-12

    VITAMIN K-12

    Buy product

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

THE HEART SMART GROUP WEBSITE

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

Senator Graham had just returned from a trip overs Senator Graham had just returned from a trip overseas. By all accounts he seemed fine. Hours later he was gone.

That is what makes an aortic dissection so hard to catch. It does not always give a warning. When it does, the warning is sudden, severe chest or back pain that feels like tearing. That kind of pain is never something to wait out.

Your blood pressure is one of the few numbers in this story you actually get to control.
Know it.
Track it.
Treat it if it is high.

Make it a normal part of every checkup, not something you only think about after a scare.
Most people are told their cholesterol is “fine.” Most people are told their cholesterol is “fine.” But that doesn’t always mean low risk.

In practice, we’re looking deeper.

ApoB helps us understand how many particles are actually driving plaque buildup.
Lp(a) tells us about genetic risk that won’t show up on a standard panel.

These are simple blood tests. But they can completely change how we approach prevention.

If you’ve never had advanced cholesterol testing, this is worth asking about.

If you’re in the Frisco, McKinney, or Plano area, we do this every day in our prevention clinic.

We establish your baseline, walk you through your numbers, and build a plan to stay ahead of problems. If you've never been to a Cardiologist before, this is where you start. Visit www.theheartsmartgroup.com.
Most of the time, fainting is nothing. But sometim Most of the time, fainting is nothing.
But sometimes it's your heart trying to tell you something,

and these are the 5 situations that make me stop and dig deeper:

1️⃣ You pass out and your heart was racing beforehand, could be an arrhythmia that got so fast your heart couldn't keep up.
2️⃣ It happens during exercise, every time, like clockwork.
3️⃣ No warning at all ,you're just standing there and suddenly you're on the floor.
4️⃣ Someone in your family fainted young (under 50), that runs in families more than people realize
5️⃣ It's happened more than once, even if you brushed off the first time as "probably nothing".

None of these mean panic. But they do mean: don't just shake it off.

Go to my YouTube to see the full explanation of why these warning signs are so important.
Link in bio.
You’ve taken care of everyone else. Now it’s your You’ve taken care of everyone else.

Now it’s your turn. Protect your heart with knowledge, not fear.

Ask your provider about a coronary calcium score today.

#HeartHealthForWomen #WomenOver60 #SilentHeartDisease #CalciumScoreTest #StrongWomenStrongHearts
For years, we focused on basic cholesterol numbers For years, we focused on basic cholesterol numbers.  LDL, HDL, triglycerides.

That’s a start. It’s not the full picture.

Now we’re looking deeper at ApoB, which helps us understand how likely those particles are to actually cause plaque and blockage.

Here’s why that matters:
📌 You can have low LDL and still be at risk
📌 If ApoB is high, your risk is still there
📌 It’s a more accurate way to measure what’s happening

The good news is nothing changes for you. It’s still a simple blood test.

We just add a few key markers:
ApoB
Lp(a)
hs-CRP

That gives a much clearer picture of your risk and how to prevent heart attack and stroke.

If you’ve been told your cholesterol is “fine” but want a deeper look, this is where to start.  We'll measure this when you come into our Prevention Clinic at The Heart Smart Group in Frisco and McKinney, TX.
Your heart works harder in the heat. To cool you d Your heart works harder in the heat. To cool you down it pumps more and faster, and you lose fluid as you sweat. For most people that is fine. For some, it is a real strain.
If you have a heart condition, take high heat seriously. Hydrate before you are thirsty. Move your hardest activity to the cooler hours. Pay attention to dizziness, a racing heart, or unusual shortness of breath.
None of this means hide indoors all summer. Stay active. Just be smart about when and how, especially through a North Texas July.
The goal is to enjoy the season without surprising your heart.
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