Regis Philbin
Nov 2nd, 2006, 06:02 PM
http://www.emedicinehealth.com/script/main/art.asp?articlekey=77143
Study: Men's Testosterone Levels Down
Levels Are Still Within the Normal Range, Boston Study Shows
By Miranda Hitti
WebMD Medical News
Reviewed By Louise Chang, MD
on Thursday, October 26, 2006
Oct. 26, 2006 -- A new study shows a drop in average blood levels of testosterone in middle-aged Boston men over the last 20 years.
The reasons for that decline aren't clear, and participants' average testosterone levels are in the normal range, the study shows.
The report appears in The Journal of Clinical Endocrinology and Metabolism's early online edition.
The researchers work at the New England Research Institutes in Watertown, Mass. They included Thomas Travison, PhD.
Travison's team studied the testosterone levels of 1,500 Boston men.
Blood levels of testosterone were first checked in the late 1980s. The second testing was in the mid-1990s. The third testing was in 2002-2004.
All of the men were 45 to 79 years old when they took the testosterone test.
As men age, their testosterone levels naturally drop. So the researchers made sure their comparisons were fair in terms of the men's age.
The key finding: Testosterone levels declined over time beyond what would be expected with age.
Study: Men's Testosterone Levels Down
Levels Are Still Within the Normal Range, Boston Study Shows
By Miranda Hitti
WebMD Medical News
Reviewed By Louise Chang, MD
on Thursday, October 26, 2006
Oct. 26, 2006 -- A new study shows a drop in average blood levels of testosterone in middle-aged Boston men over the last 20 years.
The reasons for that decline aren't clear, and participants' average testosterone levels are in the normal range, the study shows.
The report appears in The Journal of Clinical Endocrinology and Metabolism's early online edition.
The researchers work at the New England Research Institutes in Watertown, Mass. They included Thomas Travison, PhD.
Travison's team studied the testosterone levels of 1,500 Boston men.
Blood levels of testosterone were first checked in the late 1980s. The second testing was in the mid-1990s. The third testing was in 2002-2004.
All of the men were 45 to 79 years old when they took the testosterone test.
As men age, their testosterone levels naturally drop. So the researchers made sure their comparisons were fair in terms of the men's age.
The key finding: Testosterone levels declined over time beyond what would be expected with age.