when do babies lose the ability to swim
Infant swimming Most human babies demonstrate an innate swimming or diving reflex from birth until the age of approximately six months. However, babies this young cannot actually swim, due to their lack of body features and strength. Other mammals also demonstrate this phenomenon (see mammalian diving reflex). This reflex involves apnea (loss of drive to breathe), slowed heart rate (reflex bradycardia), and reduced blood circulation to the extremities such as fingers and toes (peripheral vasoconstriction).[1] During the diving reflex, the infant's heart rate decreases by an average of 20%.[1] The glottis is spontaneously sealed off and the water entering the upper respiratory tract is diverted down the esophagus into the stomach.[4] The diving response has been shown to have an oxygen-conserving effect, both during movement and at rest. Oxygen is saved for the heart and the lungs, slowing the onset of serious hypoxic damage. The diving response can therefore be regarded as an important defence mechanism for the body.[5]
Down by the Water The song's lyrics tell the story of a woman committing filicide. The woman drowns her daughter "down by the water" and "won't see her again." The final coda features Harvey whispering the lines: "little fish, big fish swimming in the water / come back here, man, gimme my daughter." The refrain was based on Lead Belly's rendition of the traditional American folk song "Salty Dog Blues." In 2005, Harvey used the song's lyrics in a Spin interview as an example to demonstrate that her songs were not autobiographical: "Some critics have taken my writing so literally to the point that they'll listen to 'Down by the Water' and believe I have actually given birth to a child and drowned her."[2]