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 4, 1964, President Lyndon Johnson announced that two days earlier, U.S. ships in the Gulf of Tonkin had been attacked by the North Vietnamese. Johnson dispatched U.S. planes against the attackers and asked Congress to pass a resolution to support his actions.