She Died in Her Sleep From Doing This — Doctors Urge You to Stop Immediately

But for Roberto, a 68-year-old man with no known heart disease, sleep became his final moment. He passed away silently in the night from a massive heart attack—not because he was unhealthy, but because of a common nighttime habit he never knew was dangerous.

His story isn’t rare. In fact, thousands die each year from preventable nighttime triggers that strain the heart and brain while they sleep.

The good news? These risks are avoidable—if you know what to look for.

Here are the 5 most dangerous sleep habits linked to heart attacks and strokes—and exactly how to protect yourself.

1. 🛌 Sleeping on Your Back with Undiagnosed Sleep Apnea — The Silent Killer

What happens:

When you sleep on your back, gravity pulls your tongue and soft palate backward, blocking your airway—especially if you have obstructive sleep apnea (OSA).

Each time you stop breathing (even for 10–30 seconds), your body panics:

Oxygen plummets

Blood pressure spikes

Adrenaline surges

Heart races

This can happen hundreds of times a night—putting your cardiovascular system under extreme stress.

Warning signs: