Around 2/3 of women experience shortness of breath as a part of a normal pregnancy. Neurological conditions such as spinal cord injury, phrenic nerve injuries, Guillain-Barre syndrome, amyotrophic lateral sclerosis, multiple sclerosis and muscular dystrophy can all cause an individual to experience shortness of breath.
On August 2, 1964, the U.S. destroyer Maddox exchanged shots with North Vietnamese torpedo boats in the Gulf of Tonkin. Two days later, the Maddox and another destroyer reported once again coming under fire.
On August 2, North Vietnamese torpedo boats attacked an American destroyer in the Gulf of Tonkin. Johnson responded by sending in another destroyer. On August 4, the two destroyers reported that they were under attack. This time, Johnson authorized retaliatory air attacks against North Vietnam. He also asked Congress to pass the Gulf of Tonkin Resolution.