1 The right side of the heart receives oxygen-poor blood from body tissues and pumps it to the lungs where it picks up oxygen and gets rid of carbon dioxide. 2  The blood vessels that carry blood to and from the lungs form the pulmonary circuit.
According to the Dietary Guidelines for Americans 2015-2020, a healthy eating plan: 1  Emphasizes fruits, vegetables, whole grains, and fat-free or low-fat milk and milk products. 2  Includes lean meats, poultry, fish, beans, eggs, and nuts. 3  Is low in saturated fats, trans fats, cholesterol, salt (sodium), and added sugars.
Although no diet can relieve stress, eating healthy meals helps keep your body well nourished and strong. Avoid caffeine, alcohol, and nicotine. Eat more fresh vegetables, whole grains, and fruits. Eat small meals often that contain protein, complex carbohydrates, and healthy fats to avoid high and low blood sugar.