SPOC week 1 AI generated Flashcards
Describe cardiometabolic diseases.
Cardiometabolic diseases are a group of nutrition-related disorders that are a major cause of mortality globally, affecting both men and women. They include conditions like coronary heart disease and type 2 diabetes, often linked to factors such as smoking, unhealthy eating, and lack of exercise.
What is the impact of lifestyle on cardiometabolic diseases?
Lifestyle plays a significant role in the development of cardiometabolic diseases, with modern habits contributing to about 80% of these conditions. Unhealthy lifestyle choices can lead to obesity, diabetes, and heart disease.
Explain the role of DNA in cardiometabolic diseases.
While DNA can influence the risk of cardiometabolic diseases, it explains less than 10% of the overall risk. Lifestyle factors are considered more important than genetic predisposition in the development of these conditions.
Define cardiovascular diseases (CVD).
Cardiovascular diseases (CVD) encompass a group of disorders affecting the heart and blood vessels. Common occurrences include fat buildup in arteries and blood clots, which can impede blood flow and potentially lead to serious complications.
Describe coronary heart disease and its progression.
Coronary heart disease is a prevalent type of CVD characterized by high levels of LDL-cholesterol leading to the formation of fatty streaks in artery walls. These streaks can evolve into plaques through a process called atherosclerosis, involving macrophages, inflammation, fibrous tissue, and calcium deposits.
What are the consequences of plaque rupture in coronary heart disease?
When a plaque in coronary heart disease ruptures, it can trigger the formation of a blood clot or thrombus, obstructing blood flow in the artery. This reduced oxygen supply to tissues can result in acute coronary syndromes like unstable angina, often accompanied by severe chest pain.
Describe congestive failure.
Congest heart failure occurs when heart is too weak or stiff to pump blood effectively throughout the body, leading a condition where the heart cannot meet the body’s demands.
Define ischemic stroke.
An ischemic stroke is the most common type of stroke, caused by a blockage in a blood vessel supplying the brain, often due to a blood clot.
How does a hemorrhagic stroke occur?
A hemorrhagic stroke happens when a blood vessel in the brain bursts, typically due to uncontrolled high blood pressure, leading to bleeding in the brain.
Do brain cells regenerate after a stroke?
No, brain cells cannot be replaced after a stroke, and if too many brain cells die due to lack of oxygen, it results in permanent damage.
Describe peripheral artery disease.
Peripheral artery disease occurs when arteries in the legs become narrowed due to atherosclerosis, leading to reduced blood flow and oxygen supply to the leg muscles, causing pain during walking.
What is diabetes mellitus?
Diabetes mellitus is a chronic condition characterized by high blood glucose levels due to issues with the hormone insulin, leading to damage to organs, nerves, and blood vessels if left uncontrolled.
Explain type 1 diabetes.
Type 1 diabetes is an autoimmune disorder or virus-induced condition where the beta cells of the pancreas are destroyed, resulting in a lack of insulin production. It typically occurs suddenly in children and teens.
How does type 2 diabetes develop?
Type 2 diabetes is a metabolic disorder where the body either does not produce enough insulin or becomes resistant to insulin over time, often influenced by poor diet and lack of exercise.
Describe the relationship between obesity and type 2 diabetes.
People with obesity are more prone to developing type 2 diabetes, especially those with excess belly fat.