My hubby and me were discussing this and now i am all freaked out, he says its real common to have twins born up to two hours apart :o OMG but my bro and sis were 25 mins apart so i was wondering how far a[art all your twins was so i can get an idea of the so called norm. 1  Helpful (3) 2  Nice (1)  Funny.
A negative score means that you have thinner bones than an average 30-year-old woman. A positive score means that you have stronger bones than an average 30-year-old woman. If the T-score at any site is -1 to -2.5, you have a low BMD and are at increased risk of osteoporosis. A score of -2.5 or lower means that you have osteoporosis. Treatment usually is recommended to prevent fractures. How often should I have a BMD test? How often you should have your BMD measured depends on your age and results of your previous DXA scan. Women 65 years and older with normal bone mass or mild bone loss can have a test every 15 years. More frequent testing is recommended for women in this age group with T-scores between -1.5 and -2.49.
The value of screening mammograms was questioned in November 2009 when the U.S. Preventive Services Task Force recommended that routine screening mammograms for women with an average risk of breast cancer should start at age 50 instead of age 40.or example, mammograms have been shown to lower the risk of dying from breast cancer by 35% in women over the age of 50. In women between ages 40 and 50, the risk reduction appears to be somewhat less.