കുറച്ച് വ്യായാമം തീരെ വ്യായാമം ഇല്ലാത്തതിനേക്കാൾ മെച്ചം https://youtu.be/yU2O3VWt6qg Regular physical activity has a lot of cardiovascular beneficial effects in various domains. Regular exercise can bring down the levels of LDL cholesterol and increase the levels of HDL cholesterol which has a protective effect. Long term exercise programs can reduce blood pressure modestly. Relief of obesity is another advantage which also leads to an improved insulin sensitivity. Generalized inflammatory state also improves with regular exercise training, mediated through decreased adiposity as adipocytes are proinflammatory. Important psychological benefits of exercise include improvement in stress and depression. Social support is better with exercise programs. Regular exercise reduces platelet adhesiveness, improves fibrinolysis and reduces fibrinogen levels and blood viscosity. All these have favourable effect against thrombosis. Salutary effects on arrhythmia include reduced resting heart rate, improved vagal tone, decreased sympathetic activity and effect on heart rate variability. All these are beneficial in reducing life threatening arrhythmic events in those with established heart disease. Long term exercise programs reduce myocardial oxygen demand, though acutely exercise increases myocardial oxygen demand. Coronary flow improves, endothelial dysfunction comes down and nitric oxide levels go up. Here is an important journal reference.