Hi doctor, my uncle is suffering from breathing problem. he sporadically unable to breath for few seconds. he is 45 years old.

Breathing: This is not normal. He must get checked out with a pulmonary doctor.

Sleep apnea?: Take him to the doctor for a full workup. Untreated sleep apnea may lead to complications like cardiovascular disease like hypertension, arrhythmias, heart attacks, heart failure, strokes, diabetes, cognitive dysfunction and more.

Let him see his: Dr and get examined for conditions related to the lungs (copd/ emphysema, asthma, bronchitis, fibrosis), heart (coronary artery disease), post nasal drip, meds side effect, exposure to smoke or toxic fumes etc. God bless u both! http://www.Medicinenet.Com/shortness_of_breath/symptoms.Htm.