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Science News Archive November 1998 - Page 3


Page 3 of 5

Working Out The Risk For Stroke

A recent study by the American Heart Association found that physical activity significantly reduces the risk of stroke in individuals aged 45-64. Those who were more active at work had a 49% lower risk, while those with high levels of sports activity had a 23% reduced risk.

High Blood Pressure Can Lead To Mental Decline

Researchers found that elevated blood pressure is a strong predictor of changes in brain structure and related cognitive functioning. All participants showed declines in mental abilities over time, with higher blood pressures associated with greater declines, particularly for visual-spatial ability and speed of performance.

SourceCenter for Advancing Health·JournalHealth Psychology·DateNov 10, 1998

Role Of Government Branches In Tobacco War

A new University of Michigan study investigates the impact of tobacco litigation on public health policy, concluding that courts are not well-suited for adopting policy changes. The authors argue that building a moral and political case is essential to achieve tobacco control goals through legislative and regulatory processes.

ACE Spacecraft Braces For Fierce Meteor Storm

The Advanced Composition Explorer (ACE) spacecraft is taking precautions to withstand the November 17 Leonid meteor storm, which could pose a risk due to its close proximity to the comet's wake. NASA technicians are adjusting the spacecraft's orientation and instruments to minimize damage from the massive cloud of Leonid particles.

In The Largest U.S. Study Ever Looking At Genetic Matching Of Marrow Donors Researchers Found That Outcomes Can Significantly Be Improved For Leukemia

Researchers at Fred Hutchinson Cancer Center found that genetic techniques for matching patients with marrow donors can eliminate guesswork and improve survival rates. The study of 300 patients with chronic myeloid leukemia showed that even single mismatches in key genes don't affect long-term survival.

The Selling Of Olestra

Marion Nestle reviews the history of olestra's approval, highlighting the FDA's decision to approve the fat substitute while requiring warning labels. She calls for changes in the regulatory system to move towards alliances with industries, increasing FDA research authority and funding.

SourcePublic Health Reports·JournalPublic Health Reports·DateNov 9, 1998