Better Sleep, Longer Life: New Data Confirms Deep Sleep Protects the Heart

A major international analysis involving more than 240,000 adults has confirmed that sleep quality becomes a decisive factor for cardiovascular health after age 50. Researchers found that individuals who sleep 7 to 8 hours with stable deep-sleep cycles experience:

• Up to a 63% lower risk of heart attack and coronary disease

• Improved hormonal balance, especially cortisol and melatonin

• Stronger daytime cognitive function and better emotional stability

The study also shows that irregular sleep schedules, short nights, and late-night screen exposure increase oxidative stress, accelerating several mechanisms linked to aging.

Experts agree: for people over 50, good sleep is not a luxury — it is one of the most powerful foundations for long-term vitality, memory, energy and cardiovascular protection.