When john milton wrotehis sonnet xix, he was facing the physical challenge of blindness. what fears are described in these lines of verse from the sonnet?

Before I can answer  I need to know the sonnet do you have the options by chance?

Smoking damages the respiratory system by inhalation of a foreign substance, that is absorbed and residue is left behind on our lungs sponge like substance. the gas that is inhaled also increase your blood pressure and dilates your blood vessels. also the process of inhaling and exhaling the smoke it causes irritation to the throat and mouth. smoking can cause lung cancer and other respiratory and circulatory diseases.