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.
Mayo Clinic doctors continue to review studies about mammogram guidelines to understand what the studies mean for women's health. Changes to mammogram guidelines might or might not be necessary in the future, as researchers continue studying this topic. Mayo Clinic supports screening beginning at age 40 because screening mammograms can detect breast abnormalities early in women in their 40s. Findings from randomized trials of women in their 40s and 50s have demonstrated that screening mammograms decrease breast cancer deaths by 15 to 29 percent.