Myocardial infarction is not "sudden": New research project launched on internal environment during sleep
Toratani Co., Ltd. has released the latest analysis results on the impact of "nocturnal hypoventilation" on the heart, a root cause of myocardial infarction and arrhythmia, as the 7th part of its "Night Oxygen Flow Project – Phase 2."
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- 📰 Published: May 26, 2026 at 19:10
- 🔍 Collected: May 26, 2026 at 10:31
- 🤖 AI Analyzed: May 27, 2026 at 13:25 (26h 53m after Collected)
This analysis organizes the effects of shallow breathing on cardiac electrical signals, blood flow, and the autonomic nervous system, revealing the structure behind "why sudden myocardial infarction occurs even without abnormalities in health checkups."
Sudden cardiac death is characterized by a lack of warning signs. The potential background involves "hypoxia" caused by shallow breathing during sleep and the subsequent "autonomic overstimulation," which can affect the stability of cardiac vessels and electrical activity.
Although myocardial infarction and ventricular fibrillation appear to be different diseases, they share a common upstream cause: the disturbance of "nocturnal breathing, hypoxia, and autonomic nervous system stability." Large-scale research involving 42,000 subjects clearly shows that hypoxia during sleep increases the risk of cardiovascular disease.
FAQ
Why can a sudden heart attack occur even if there are no abnormalities in a health checkup?
It is thought that shallow breathing during sleep leads to hypoxia and excessive tension of the autonomic nervous system, causing vasoconstriction, poor blood flow, and increased cardiac load, affecting the stability of blood vessels and the electrical system.
What is the common factor between heart attacks and ventricular fibrillation?
The common factor is hypoxia due to shallow breathing during sleep and the resulting disruption of the autonomic nervous system (overactivity of the sympathetic nervous system).
What is the background for the increase in sudden deaths among young people?
Even in people who exercise, eat well, and have no issues in health checkups, shallow breathing during sleep can lead to hypoxia and excessive tension of the autonomic nervous system, putting a strain on the heart, which is referred to as an 'upstream issue'.
What kind of reaction occurs in the heart when breathing becomes shallow during sleep?
The sympathetic nervous system becomes dominant, causing vasoconstriction, increased heart rate, elevated blood pressure, and reduced venous return, leading to excessive stress reactions for the heart.
Can recovery wear improve oxygen deficiency during sleep?
Recovery wear is an external approach to blood vessels and does not have the effect of delivering oxygen, so it cannot improve oxygen deficiency due to shallow breathing during sleep.