Thomson Reuters Study Finds Baby Boomers and Generation X Face Healthcare Cost Hurdles
... groups that represent the largest slice of the employer-sponsored insurance landscape -- Baby Boomers and Generation X -- are most susceptible to the ebbs and flows of the economy." The study is part of a series of research papers assessing the impact of the current recession on the healthcare syste...Brain's reward circuit activity ebbs and flows with a woman's hormonal cycle
Fluctuations in sex hormone levels during women's menstrual cycles affect the responsiveness of their brains' reward circuitry, an imaging study at the National Institute of Mental Health (NIMH), a component of the National Institutes of Health (NIH), has revealed. While women were winning rewards,...The mystery of mass extinctions is no longer murky
...volcanoes as culprits. But a new study, published June 15, 2008, in the journal Nature , suggests that it is the ocean, and in particular the epic ebbs and flows of sea level and sediment over the course of geologic time, that is the primary cause of the world's periodic mass extinctions over the past...Steep oxygen decline halted first land colonization by Earth's sea creatures
...t of the water." Dinosaurs first appeared in the last part of the Triassic period, about 230 million years ago. That was during one of the lowest ebbs of atmospheric oxygen content of the last 500 million years, but he speculates that it took some time, until oxygen levels rose appreciably, before di...