Researchers from University of North Carolina School of Medicine have found out that pelvic bones widen as you enter middle age and continue to grow even among those over the age of 70 years.
While it is often assumed that the widening of the hips is due to increase in body fat, researchers led by Dr Laurence Dahners say that it is a natural process not linked to weight gain and that the pelvic bones of a 40 year old is wider than when he or she was 20 years of age.
Nearly 250 people took part in the study and the researchers divided them into 10 year age groups starting from 20 to 29 years of age up to 70 to 79 years, each consisting of 20 males and 20 females.
The researchers examined the CT scans and found that width of the pelvis, the distance between the hip bones and the diameter of the hip bones increased in size as they grew older and continue to widen even as they stopped growing.
Writing in the report, published in the Journal of Orthopedic Researcher, Dr Dahners said, "I think it's a fairly common human experience that people find themselves to be wider at the age of 40 or 60 then they were at 20."