1 / 6Practice deep breathing techniques. Especially bronchitis and asthma patients should do it. Those who have no such problem should also follow it. The diaphragmatic technique promotes deep breathing. The diaphragm promotes the separation of the muscle from the lungs into the abdominal organs.2 / 6Eating right, exercising well, and avoiding any kind of poisonous elements is the basic mantra to have a healthy lung capacity. Consuming the right amount of protein and antioxidants helps strengthen the resistance of the respiratory muscles and lungs.3 / 6Drink enough water to stay well hydrated, it is equally important for the lungs as it is for the rest of the body.4 / 6People with allergies or any lung disease should be regularly vaccinated for pneumonia and flu as advised.5 / 6Being overweight also reduces lung capacity because abdominal obesity does not allow the lungs to function properly.6 / 6Pollution also negatively affects lung capacity. To avoid pollution, you should wear a mask while leaving the house.