Heated discussions with work colleagues and tight deadlines can undermine memory and learning, according to new research.
Researchers found chemicals released in response to acute stress undermined communication between brain cells involved in the formation and processing of memories.
Comment: Stress shocks the system and wears it down, as well as reducing the ability of the general populace to put two and two together, and thus understand what is being done to them. With bad times around the corner economically, it looks like an awful lot of people are likely to die because of the stress and shocks of the economy melting down.
Plant pigments called anthocyanins provide fruits and vegetables with beneficial blue, purple and red coloring. Now Agricultural Research Service (ARS) scientists are learning more about these compounds and their absorption into the human blood stream.
|
©iStockphoto/Christine Balderas
|
Anthocyanins are a group of healthful compounds that fall within the flavonoid class of plant nutrients. ARS scientists have identified 36 anthocyanins in red cabbage, including eight that had never before been detected in the cabbage.
|
The widely used synthetic progestin medroxyprogesterone acetate (MPA) decreased endothelial function in premenopausal women in a study done at the University of Oregon. The finding, researchers said, raises concerns about long-term effects of MPA and possibly other synthetic hormones on vascular health in young women.
|
©J. Meendering
|
Jessica Meendering, right, works with a young woman who participating in a study of MPA and its effects on the brachial artery.
|
The health consequences of eating one large meal a day compared with eating three meals a day has not been established. Now two recently published journal articles are among the first to report the effects of meal skipping on key health outcomes, based on a study involving a group of normal-weight, middle-aged adults.
|
©Peggy Greb
|
ARS and National Institute on Aging studies looked into health consequences of eating one meal a day, which some people do, compared to the standard recommendation of eating three meals a day.
|
How far would you go to help wipe out one of the world's worst scourges?
Seattle-area residents will soon be able to go all the way: allowing themselves to be bitten by malaria-infected mosquitoes to aid in the quest for new vaccines and drugs.
Seattle Biomedical Research Institute (SBRI) is announcing plans today for a facility where volunteers will be exposed to the deadliest form of the disease, which kills at least a million people a year. Most victims are African children.
But scientists are quick to point out that participating in the clinical trials won't be a life-threatening experience.
BBCTue, 11 Mar 2008 12:41 UTC
There is evidence linking chronic health problems suffered by Gulf War veterans to exposure to pesticides and nerve agents, US research has found.
A third of veterans of the 1991 war experienced fatigue, muscle or joint pain, sleeping problems, rashes and breathing troubles, the research found.
A US Congress-appointed committee on Gulf War illnesses analysed more than 100 studies in the research.
Pity the poor school officials in Greene County, Ga. When they suggested last month that they wanted to become the first school district in the nation to segregate all public schools according to gender, you would have thought they'd announced their intent to revive racial segregation.
Women who survive breast cancer are often haunted by the fear that it might come back. But new research indicates that many more women than had been thought can do something to protect themselves.
Will Dunham
ReutersMon, 10 Mar 2008 05:16 UTC
Washington - If both your parents have Alzheimer's disease, you probably are more much likely than other people to get it, researchers said on Monday.
Their study focused on 111 families in which both parents were diagnosed with Alzheimer's disease, the most common form of dementia among the elderly, and assessed the risk for developing it among the offspring.
Take a group of patients recovering from serious operations. They need morphine to dull their pain and some need diazepam to calm their nerves. They will get their medication by intravenous drip, but won't always be told when they will get it - it might just be pumped in automatically.
The Italian researchers who conducted this ingenious study five years ago found that not being told they were receiving morphine cut the effect of the pain relief on the patients in half. And only those who were told they were getting tranquillisers became calmer; those who received diazepam without being told got no relief whatsoever.
Comment: Stress shocks the system and wears it down, as well as reducing the ability of the general populace to put two and two together, and thus understand what is being done to them. With bad times around the corner economically, it looks like an awful lot of people are likely to die because of the stress and shocks of the economy melting down.