Differences in Cardiovascular and Hypothalamic-Pituitary-Adrenal Axis Functions between High-Altitude Visitors and Natives during a Trek on the Annapurna Circuit

The alterations of CAR occurred at HAs where blood pressure levels reached a peak plateau, which is associated with an increase in heart rate at HAs in the trekkers. The CAR was unaltered in the Sherpas during the trek.