When we take a breath of fresh air into our lungs, oxygen passes from the lungs to the blood where it is picked up and carried through the blood vessels by a molecule called haemoglobin. This oxygen-rich blood is then pumped by the heart throughout the body so that oxygen can be offloaded to cells for conversion to energy. In order to release oxygen from the blood, however, haemoglobin requires a catalyst which invol
Breathing can be measured in two ways: the first is to count the number of breaths per minute; the second is to determine the size of each breath. Normal breathing rate for a grown adult at rest is about twelve breaths per minute, taking in half a litre of air per breath. These average measurements give a volume of six litres of air per minute. During asthma, hyperventilation, or a panic attack, breathing volume can
Exercise-induced asthma (also known as EIA) occurs due to an increased volume of breathing brought about by the demands of physical effort. The theory generally accepted among researchers is that increased ventilation cools and dehydrates the airways. With increased ventilation, airways are required to condition a greater volume of air and this causes the dehydration and cooling effect.
It is important to note that depending on the severity of your condition, and on your general medical history, you may need to check with your doctor before starting a new exercise regime. Physical exercise is essential for every asthma sufferer. In fact physical exercise and plenty of it is beneﬁcial for everyone – asthma sufferer or not – but unfortunately the modern lifestyle very often enco