Essentially, lung capacity is the total amount of air that your lungs can hold. and that decreases slowly as we age over the age of 20-25 years old. and the average total lung capacity of an adult human is about 6 litres of air, that is about three large soda bottles.
help your respiratory system with breathing exercises and physical activity.
Breathing Exercises : you just have to take a deep breath to keep your lungs healthy.
One of the examples for breathing exercises is Diaphragmatic breathing, or just ‘belly breathing’, which engages the diaphragm to do most of the heavy lifting.
relax your shoulders and sit back or lie down.
place one hand on your belly and one on your chest.
inhale through your nose, making sure the air reaches into your abdomen and feeling your stomach move out, more than your chest does.
breathe out through pursed lips while pressing on your abdomen
Notice your Posture : slumped sitting decreases lung capacity, because the position squeezes your lungs, making them smaller. so, sit up straight.
Get active : helpfully, exercising regularly is one of the ways you can improve lung capacity, you see lungs bring oxygen into the body and expel carbon dioxide. and when you exercise, this process happens more quicker and makes your lungs stronger and more efficient over time.
Vitamin D : most people can get vitamin D from the sunshine. but as the winter months approach and the sun disappears, it may be worth investing in vitamin D supplements. though it can also be found in foods such as egg yolks, red meat and oily fish.
Smoking : you had it coming, obviously smoking damages the lungs, causing all sorts of problems, and it definitely affects your lung capacity. and according to the NHS, your lung capacity will have improved by at least 10% nine months after you quit smoking.