In a move that could revolutionize family planning, researchers in Britain have developed a fertility hormone chart that can tell exactly how long a woman has the capability of bearing a child.
Researchers from Glasgow and Edinburgh universities analyzed the fertility hormone levels in more than 3,200 women and calculated how the range changed with age.
This could then be used as a benchmark to compare with other women and thereby help them not only to know how long they have before they are unable to conceive but will also help them avoid expensive in vitro fertilisation treatments that could be unsuccessful based on their hormone levels.
Tom Kelsey, a lecturer in the university's school of computer science, who was part of the research effort, told the Daily Telegraph that researchers had previously determined that high levels of the fertility hormone were good for conception, but did not have the statistics to back this up.
"This study now provides us with the level you would expect to find in a normal, healthy woman," he added.