How Sleep Deprivation Affect Your Heart


It is difficult to overstate the heart’s importance to health. Responsible for pumping blood throughout the body, the heart powers the circulatory system, which ensures that all the organs and tissues in the body get the oxygen they need. Unfortunately, heart problems are a leading cause of illness and death in the world.

Since well-known factors like poor diet, limited exercise, and smoking can harm the heart, there is a growing recognition of the danger that sleep deprivation has on a heart’s health.

Sleep plays a key role in nearly all aspects of physical health as it gives time for the body to restore and recharge. For the cardiovascular system, insufficient sleep can contribute to problems with blood pressure and heightens the risk of heart disease, diabetes, and stroke.

As a result, getting good sleep may help prevent damage to the heart, and for people with heart problems can be a part of following a heart-healthy lifestyle.

Substantial evidence demonstrates that sleeping problem including sleep deprivation and fragmented sleep has negative effects on your heart’s health. Sleep is an essential time for the body to recuperate during the non-rapid eye movements (NREM) sleep stages, during this phase heart rate slows down, blood pressure drops, and breathing stabilizes and this reduces stress on the heart allowing it to recover from strain. Without sufficient nightly sleep, a person doesn’t spend enough time in the deep state of NREM sleep that benefits the heart, the same problem can affect people’s whole sleep is frequently interrupted. As a result, chronic sleep deprivation has been linked to numerous heart problems including high blood pressure, high cholesterol, obesity, diabetes, heart attack, and even stroke.

Sleep and Blood Pressure

During normal healthy sleep, the blood pressure drops around 10 to 20%. This is known as nocturnal dipping and research highlights its role in cardiovascular health. Poor sleep weather from a lack of sleep or sleep deprivation is associated with non-dipping meaning that the person’s blood pressure doesn’t go down at night. Studies have found that elevated nighttime blood pressure is the type of overall hypertension. Non-dripping has been tied to an increased risk of stroke and heart attack. It’s also been linked to kidney problems and reduced blood flow to the brain.

Multiple studies have identified that raised blood pressure in the daytime is a consequence of sleep deprivation, but it doesn’t affect all people equally.

Sleep and Coronary Heart Disease

Coronary heart disease is also known as coronary artery disease is the leading cause of death in the world and happens when plaque builds up in the arteries, hardening and narrowing them in a condition known as atherosclerosis and this reduces the ability of the heart to get enough blood and oxygen As a consequence of inflammation which involves white blood cells, which are produced by the immune system to collect in the arteries, poor sleep triggers chronic inflammation which contributes to the plaque formation and hardening of the arteries.

Sleep and Heart Failure

When the heart doesn’t pump enough blood to supply the body with the blood and oxygen, that is required to function properly, this condition is called heart failure. An observational study of over 4 lakh people found strong associations between sleeping problems and heart failure. In that study people who have slept less than 7 hours per night have an elevated risk of heart failure. People sleeping less than 6 hours per night had a 20% higher chance of heart attack. A stroke is when blood flow to the brain is cut off causing brain cells to die from lack of oxygen, ischemic stroke occurs when a bad clot or plaque blocks an artery. A transient ischemic attack also referred to as a mini-stroke involves only a short-term blockage.

Sleep and Obesity

Being overweight or obese is strongly associated with numerous cardiovascular and metabolic problems, including hypertension, diabetes, high cholesterol, heart disease, heart attack, and even stroke. An analysis of existing research found that the lack of sleep is correlated with obesity. People who sleep less than 7 hours per night are more likely to have a high body mass index. Sleep helps regulate the hormones that control hunger and lack of sleep or sleep disturbances can trigger overeating and boost the desire for high-calorie food.

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