Our knowledge of bird nutrition is constantly evolving. This is due both to heightened awareness of the importance of nutrition and to increased research into birds different needs. As with all other animals, birds need a proper balance of carbohydrates, proteins, fat, vitamins, minerals and water.
A person with emphysema will have shortness of breath â during physical activity and, when the condition is more advanced, also during rest. Patients may eventually need supplemental oxygen and may have to rely on mechanical respiratory devices. Other symptoms of emphysema include: 1  Chronic cough. 2  Frequent respiratory infections. 3  Reduced appetite. 4  Weight loss.
One of the hallmark signs of emphysema is pursed-lipbreathing.. The person with emphysema struggles to exhale completely, in an attempt to empty trapped air. They purse their lips, leaving only a small opening. Then, when they exhale, the lips block the flow of air, increasing pressure in the collapsed airways, and opening them, allowing the trapped air to empty.