Any merit to this study?nandrolone very damaging to the heart compared to other aas?

Define- heavy and long.
"Heavy and long-term use of anabolic steroids such as testosterone and nandrolone increases the chance of fatal heart failure, and even more so when combined with recreational drugs like cocaine."
 
Some very confusing data overall, lots of terms thrown around, but from what I can gather...

The researchers exposed endothelial cells to testosterone, the testosterone precursor androstenedione, and two precursors of nandrolone. They then recorded the concentration at which half of the cells stopped growing. The results are presented below.

The more an anabolic steroid reduces growth of blood vessel cells, the more dangerous the anabolic steroid is for the heart and blood vessels.

They appear to be measuring "heart damage" on the basis of how much it takes to make blood vessel cells stop growing.
However, this doesn't tell us how much it actually matters in the real context. Let's say you run a 16 week cycle per year. Accounting for the time it takes for blood concentration to maximize, around 11 weeks.
Add in the "damage" done during the "loading phase" and it's around ~13 weeks out of the year.

So essentially, you are slowing the growth of blood vesssel cells for ~1/4 of the year (and likely only for a portion of your life) if it's a drug of choice.

The real question here is this:
does it matter?
Is that enough to make a significant impact overall?
Can you fully recover in the down time?
Can the increased health benefits of staying active through weight training put your net cardio system actually above that of a sedentary individual?

As XELFLEC already alluded to: "define heavy and long term."
 
Interesting, I just came off npp to long ago(2 weeks ago) ran it for 10 weeks. The one thing I did notice was that I was getting noticeable chest pain, especially at night as soon as I started taking a baby aspirin It kinda would go away but it would come back. I am still on test, but no longer have had these feelings of chest discomforts/tightness, who knows could be related
 
I hate all these type of studies I feel like in the end of it all we are only left with fucked up information that scares us all and than some one saying how none of it is true because of some type of flaw they had in the study. But still we all have the lingering feeling that NPP is bad. That is how all these studies end when they are discussed on forums.
 
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