A restful night’s sleep isn’t just about feeling refreshed in the morning; it’s a vital part of maintaining overall health, especially heart health. According to health experts, consistent sleep deprivation can negatively affect a wide range of bodily functions, from metabolism to mood and immune response, and is increasingly being linked to cardiovascular disease.
Amie Leckie, a health and wellbeing specialist at Heart Research UK, emphasized the importance of sleep in maintaining balance across multiple bodily systems. “Sleep also impacts our metabolism, mood, hormone balance, immune function, and disease resistance,” she noted, explaining that the heart often suffers when other systems fall out of sync.
During sleep, essential processes take place, including the regulation of blood pressure and inflammation, two key factors affecting cardiovascular health. Without adequate rest, these processes can become disrupted, increasing the risk of long-term heart issues.
A 2023 study published in the Journal of Clinical Cardiology reinforced this, finding that adults who consistently sleep fewer than five hours per night face a significantly higher risk of heart attack, reports Surrey Live.
Experts recommend that adults aim for seven to nine hours of quality sleep each night to support heart health and overall well-being. Good sleep hygiene helps regulate blood pressure, which in turn balances hormone levels and reduces cardiovascular strain.
Chronic inflammation is another concern. Elevated inflammatory markers — often found in those who sleep poorly — are linked to damage in blood vessels and the development of atherosclerosis, a condition where arteries become narrowed and hardened. As Leckie explained on the Heart Research UK website, “Inflammation damages blood vessels, promotes plaque build-up, and contributes to atherosclerosis.”
Sleep also plays a critical role in managing heart rate variability (HRV), a key measure of cardiovascular function. A lower HRV can signal potential heart and vascular problems, and studies show that poor sleep habits can decrease HRV, further increasing health risks.
Those getting less than six hours of sleep nightly tend to have higher blood pressure, and for individuals with existing hypertension, inadequate rest can make matters worse. Leckie highlighted the mental health dimension as well, noting, “Chronic sleep deprivation can lead to increased stress, anxiety, and depression. Conversely, these conditions can further exacerbate sleep problems, creating a challenging cycle for affected individuals.”
Additionally, quality sleep allows for essential repair and recovery within the body, including cell regeneration, toxin clearance from the brain, and memory consolidation from daily experiences. In sum, prioritizing regular, quality sleep is not only beneficial for daily functioning but is critical for protecting the heart and long-term health.