Not only it is one of the largest airports in the world but is also ranked among one of the busiest airports in the world. According to sources, Beijing Capital International Airport accounted 557,167 air craft landings and take offs, making it the busiest airport of the world in 2014.
Bone mass generally peaks around the age of 30-35, and then starts to slowly decline at around age 50 in women (60 in men) when you start to lose bone mass faster than your body can grow it back. This happens to all adults, however critical loss of bone mass (osteoporosis) is much more common in women.
Usually around age 35 or later, women begin to lose bone mass, sometimes at a rate of 1% per year. This loss jumps to about 4% per year during the five to 10 years after menopause (around ages 45 to 55). The natural decline in estrogen at menopause speeds up the breakdown of bone.