Heart disease can start at any age, including in childhood, although it is more commonly associated with aging. Several factors can contribute to the development of heart disease, such as high blood pressure, high cholesterol levels, smoking, obesity, diabetes, and a sedentary lifestyle. These risk factors can accumulate over time, leading to the buildup of plaque in the arteries and increasing the risk of heart disease. It is important to adopt healthy lifestyle habits early on, such as eating a balanced diet, engaging in regular physical activity, avoiding smoking, and managing chronic health conditions, to reduce the risk of heart disease at any age. Additionally, regular screenings and check-ups with a healthcare provider can help detect any early signs of heart disease and prevent its progression.