On 28 June 1919, Germany reluctantly signed the Treaty of Versailles as part of the Paris Peace Conference in the Hall of Mirrors at the Palace of Versailles â exactly five years on from the assassination of Archduke Franz Ferdinand, the spark that had ignited the First World War.
Medical textbooks suggest that the normal respiratory rate for adults is only 12 breaths per minute at rest. Older textbooks often provide even smaller values (e.g., 8-10 breaths per minute). Most modern adults breathe much faster (about 15-20 breaths per minute) than their normal breathing frequency.
This is called the ventilation, or respiratory rate.1 The average heart rate, for a healthy adult, is around sixty to one-hundred beats per minute, but it can be lower, depending on the athleticism of a specific person.2 This means that each breath, on average, would last about five seconds, (about two and a half seconds to inhale, and two and a half seconds to exhale).