The lungs are made of hundreds of thousands of branching tubes that end in tiny air sacs, or alveoli. There are over three hundred million of these tiny sacs in our lungs, offering roughly the surface area of a tennis court to keep up with the respiratory demands of the body. The membranes of these tiny air sacs are also thinner than tissue paper to maximize the exchange of gases.
Our lungs make up a large part of our immune system. Pollutants and infection-causing microbes and viruses are captured by mucus in the lungs and shuttled upward by tiny cilia for us to cough out or swallow. Sneezes are another way the lungs help rid us of infection or pollution, often before these invaders even pass beyond the sinuses.
How to Keep Your Lungs Healthy
The lungs are remarkable. They should be cared for. First and foremost, do not smoke. Smoking destroys the cilia that help remove infection and pollutants, resulting in clogged airways.
Smoking is linked to most lung diseases including chronic obstructive pulmonary disease (COPD) and asthma. Smokers are 12 to 13 times more likely to die from COPD than non-smokers. There are thousands of chemicals in cigarettes and every time you breathe them in, these toxins can damage your lungs. Smoking also causes your lung cells to age more quickly. This can cause lung cells to change from normal to cancerous.
No matter how long you’ve been smoking, it’s always beneficial to quit smoking. Within a few months of quitting, your lung function starts to improve. After a year of quitting, your risk of heart disease is half that of a smoker’s.
Related: 14 Ways to Naturally Prevent Heart Disease and Boost Heart Health
Limiting your exposure to indoor and outdoor pollutants can also help. Wear a respirator when painting or doing any hobbies that include dust or industrial gases. Try to avoid secondhand smoke and exercise near heavy traffic areas.
Exercise is also important. It doesn’t necessarily strengthen the lungs as they rely on the diaphragm muscle, but any improvement of the cardiovascular system makes the job of the lungs easier. Do something active for 30 minutes each day to lighten the load on your lungs and increase the efficiency of oxygen transportation and metabolism. These 30 minutes can even be broken up throughout the day. Park further from the grocery store, take the stairs, get up from your desk and walk around the building, do some jumping jacks, walk your neighborhood, or even run in place for a bit. Anything is better than staying on the couch.