Diving into the water without an oxygen tank is called ‘free-diving.’ It is a form of apnea diving in which divers must hold their breath for an extended period while diving deep into the water with just one breath of oxygen. The difficulty in holding the diver’s breath during this time is not due to a lack of oxygen but rather an increase in carbon dioxide concentration. In other words, if you keep your heart rate low and your metabolism slow, you produce less carbon dioxide, which allows you to dive for a longer duration. The only way to maintain a low heart rate is to remain as calm as possible. Maintaining calmness has numerous benefits in life. - Joseph’s “just my thoughts”
Knowing and doing are two very different things. Zhuge Liang, an incomparable genius who was a Chinese prime minister of the Three Kingdoms, knew the deep secret of nature. However, he suffered a great defeat in the most important battle because he wrongly appointed Ma Su as his subordinate general, even though he knew him well and had received a warning about his appointment from the late king. Personnel management is the most difficult thing in the world, and to manage it well is the key to success. - Joseph's "just my thoughts"