The phrenic nerve controls the diaphragm, the dome-shaped muscle that is primarily responsible for breathing. Contraction of the diaphragm expands the lungs and draws air into them. The phrenic nerve ...

An office breathing test typically means you blow into a machine that measures how much air your lungs can take in and how quickly and forcefully you can blow it out. These numbers tell your doctor if ...

Attorney General Pamela Bondi on Monday defended a controversial Trump administration proposal to eliminate the ATF and merge its functions into the Drug Enforcement Administration. The plan, outlined ...