He incorporated Biltmore and opened the house to visitors for the first time in 1930. Edith died in 1958, and in 1960 the Cecil sons split the Biltmore property. George took the dairy and a portion of the estate, while William took the house and the part of the estate known as Biltmore Forest. William became head of the Biltmore Company and a leading historic preservation advocate. Although the U.S. government has declared Biltmore a National Historic Landmark, it operates without federal grants
The reason is that the AV node is like a highway on-ramp â only so many vehicles can get on at one time. The result is a fast and irregular heart rhythm. The heart rate in atrial fibrillation may range from 100 to 175 beats a minute. The normal range for a heart rate is 60 to 100 beats a minute.
Myth: A normal heart rate is 60-100 beats per minute. That's the old standard. Many doctors think it should be lower. About 50-70 beats per minute is ideal, says Suzanne Steinbaum, MD, director of women's heart health at Lenox Hill Hospital. Recent studies suggest a heart rate higher than 76 beats per minute when you're resting may be linked to a higher risk of heart attack. The better shape you're in, the slower your heart rate will be when you're not moving around.