When you hold your breath the ongoing accumulation of carbon dioxide in your cells, in your blood and lungs will eventually irritate and trigger impulses from the respiratory center part of your brain. Rising levels of carbon dioxide signal the body to breathe and ensure our unconscious and autonomous respiration.
The Brazilians celebrate the Valentine's Day in a very big way. Unlike in the United States or any other countries, Brazil does not celebrate Valentine's Day on the 14th of February because it usually falls close to the Brazilian Carnival. They celebrate the Dia dos Namorados (Day of the Enamored) on June 12th.
Valentine's Day, also called Saint Valentine's Day or the Feast of Saint Valentine, is celebrated annually on February 14. Originating as a Western Christian feast day honoring one or more early saints named Valentinus, Valentine's Day is recognized as a significant cultural, religious, and commercial celebration of romance in many regions around the world, although it is not a public holiday in any country.