Of course there is and ASCVD - diseases of the heart and circulatory system are the Leading Cause of Premature Death in Diabetics whether Type 1, 2, 3, LADA or MODY

Why?

Because blood sugar even just a "little" higher than normal for sustained periods of time DESTROYS your Vascular System

Anytime your Blood Sugar remains above about 140 points or 7.8 mmols for "longer than" about 4 to 6 hours a day (cumulative) YOU ARE Damaging your Vascular System

And if you do that "long enough" you will destroy your big veins first which lead to Neuropathy, Congestive Heart Failure, Heart Attack and Stroke then the small veins get in on the party for a while since the "big veins/arteries" (macrovascular system) is kinda tough and will take a bit of a beating

The smaller vessels (microvascular) are the ones that make your life miserable BEFORE your heart takes you out

Those little veins get destroyed and you lose your Vision (Retinopathy), your Kidney's (leads to failure and possibly dialysis) but maybe fortunately it also results in Vascular Dementia - looks like Alzheimer's but is cause by blood sugar damage, so maybe at least you don't realize that the Diabetes Monster is killing you slowly and painfully

And the Beast is sneaky

Because often you don't get any warning of the damage being done until you are at the point where the (damage) is Way Too Advanced to effectively do anything about it

That is 70% of Diabetics who bop along with an A1C way north of 6.5% - kinda the line between "living long and prospering" (as Spock used to say on Star Trek) and dying young with body parts amputated after living with years of debilitating pain

Not trying to scare anyone here, but Diabetes is serious and you only have two choices

Control it however you need too - habit changes, weight loss, eating right, exercise, Real Meds, OR

Lie to yourself, ignore real medical advice, look for excuses and Die Young in great pain

There is no Door Number 3 "after" you have been diagnosed