Sleep affects blood pressure, heart rate and long-term heart health. These guides explain how sleep duration, quality and regularity matter, and how conditions such as obstructive sleep apnea are linked to heart rhythm problems.

Sleep is often treated as a lifestyle “extra” the first thing sacrificed for work, socializing, or screen time.

Atrial fibrillation (AFib) — the most common sustained heart rhythm disorder — is usually discussed in terms of its own risk factors: age, high blood pressure, obesity, and heart disease.