Grape vs lungs

Our lungs are made up of branches of ever-smaller airways that finish up with tiny bunches of tissue called alveoli.  These structures, which resemble bunches of grapes, allow oxygen to pass from the lungs to the blood stream.  One reason that very premature babies struggle to survive is that these alveoli do not begin to form until week 23 or 24 of pregnancy. A diet high in fresh fruit, such as grapes, has been shown to reduce the risk of lung cancer and emphysema.  Grape seeds also contain a chemical called proanthocyanidin, which appears to reduce the severity of asthma triggered by allergy.