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.
At its worst, emphysema can cause air hunger.. This is the constant feeling of being unable to catch one's breath. These respiratory symptoms are the same regardless of the cause of the emphysema. However, two people with the same degree of lung damage may have different symptoms. One person with mild emphysema may feel very short of breath. Another person with more advanced stages of the disease may be hardly bothered by symptoms.