Describe in detail the hormonal changes followed by the cardiovascular action and the leg muscle activity, concluded by the respiratory adaptation involved in quickly rising out of bed in the morning. Include details as the adaptation to the stress of getting up, changes in blood pressure, functionality of the cardiac muscle (within the cells and across the heart) as well as the changes to external and internal respiration and how it is achieved. Include cellular details from the endocrine glands, the cardiac muscle, the leg muscles and the lung
