breathe

1、 The engine of respiration: Understanding the respiratory musclesThe lungs cannot breathe on their own: the lungs themselves are like passive ‘balloons’, unable to expand and contract on their own. The true drivers of respiration are a group of muscles called respiratory muscles, which move the chest to complete inhalation and exhalation in the lungs.The decline of respiratory muscle function is the core issue: as people age, respiratory muscles gradually lose elasticity and become harder, leading to insufficient chest expansion, […]

1 Oxygen Is Not Always Better in Greater Quantities‌Inhaling oxygen is not inherently beneficial or optimal in excess. The human body functions best in an atmospheric oxygen concentration of approximately 20%; both higher and lower levels are detrimental. Excessive oxygen intake does not improve respiration—since healthy individuals already have arterial oxygen saturation near 97%, approaching full hemoglobin capacity, additional oxygen is largely wasted. Instead, it may lead to oxygen toxicity and elevate levels of harmful reactive oxygen species. Unless suffering […]

We breathe about 15 times a minute, about 20000 times a day, about 7.3 million times a year, continuously inhaling oxygen into our bodies, converting it into energy through burning nutrients, and then exhaling exhaust gases. This gas exchange accompanies us throughout our lives. However, not everyone’s breathing pattern is the same. Most people are not aware that many people have shallow breathing or breathing disorders, leading to low gas exchange efficiency. The gap in health levels between people with […]