The new spin on estrogen is likely to be heartening news for women at the pinnacle of their careers, but disabled by brain fog. And even in the absence of any hormone, the memory eventually rebounds.
"I was in the thick of it," said Anita Mahaffey, a 51-year-old San Diego mother of three, who runs her own business, selling pajamas made of moisture-drawing fabric for menopausal women.
"I used to remember everything -- every little detail," she told ABCNews.com. "I could tell you every number in the spreadsheet and tell you the bottom line. Now, if I don't write everything down right away or it doesn't get done.
"I scared myself so much I thought there was something wrong," said Mahaffey, who enrolled in a university study on memory. But she said tests proved her memory was "100 percent better than most people," so the evaluators sent her packing.
"I do think it's difficult," she said. "And like any muscle, if you don't use it, you lose it. I started doing Sudoko puzzles."