People with this type of emphysema have a hereditary deficiency of a blood component, an enzyme inhibitor called alpha-1-antitrypsin
Those with inherited emphysema may experience the onset as early as their thirties or forties
Because it can appear when a person is as young as 30 or 40 years old
emphysema
The related link below will tell you everything about emphysema, causes and treatment.
Tar.
Early-onset disease refers to a serious illness that is present at birth and usually causes the baby to be born prematurely.
Emphysema causes lower oxygen levels in the blood.
The exact causes is still not known but it is believed to be caused by inhalation of polutant. These stuffs cause immune reaction that somehow destroy your alveoli. And/or smoking can cause emphysema, weakening/eating away the thin skin tissue of your lungs.
Increased airway resistance and reduced elastic recoil. Causes severe early dyspnea, scanty sputum, and hyperinflation.
Heavy cigarette smoking causes about 80-90% of all emphysema cases
Early stage (of any condition or disease) means, generally speaking, "it has recently started showing signs and symptoms". In emphysema, this begins with chronic lung irritation and inflammation.
endocrine