Four health factors trigger >99% of strokes and heart attacks, doctors warn against risky morning habits

A large cohort study of more than 9 million adults in the United States and South Korea tracked over 600,000 cardiovascular events—including strokes, heart attacks and heart failure—over 13‑19 years. Researchers found that 99.3‑99.7 % of those who suffered a major event had at least one of four modifiable risk factors before the incident: high blood pressure, high cholesterol, elevated blood sugar/diabetes, or tobacco use. The authors stress that early management of any of these conditions can dramatically reduce the likelihood of fatal heart and brain events.

Cardiologist Dr. Timir Baman Barraghi adds that the early morning period is a critical window for heart health. He advises against five common practices before 9 a.m.: leaping out of bed immediately, consuming coffee or energy drinks on an empty stomach, checking work emails or social media right after waking, eating sugary or heavily processed breakfasts, and performing high‑intensity exercise without an adequate warm‑up. These actions can cause sudden spikes in blood pressure and heart rate, increasing the risk of myocardial infarction and stroke, especially for middle‑aged, older adults, or those with existing cardiovascular conditions. Gradual awakening, light movement, delayed caffeine intake, a balanced breakfast, and moderate exercise are recommended to protect the heart.