Science Daily News

• Massive asteroid impacts did not change Earth's climate in the long term December 4, 2024
  Two massive asteroids hit Earth around 35.65 million years ago, but did not lead to any lasting changes in the Earth's climate, according to a new study.
• The heart has its own 'brain' December 4, 2024
  New research shows that the heart has a mini-brain -- its own nervous system that controls the heartbeat. A better understanding of this system, which is much more diverse and complex than previously thought, could lead to new treatments for heart diseases.
• 20th century lead exposure damaged American mental health December 4, 2024
  Exposure to car exhaust from leaded gas during childhood altered the balance of mental health in the U.S. population, making generations of Americans more depressed, anxious and inattentive or hyperactive, according to researchers. They estimate that 151 million cases of psychiatric disorder over the past 75 years have resulted from American children's exposure to lead.
• Owning a home in the US linked to longer life December 4, 2024
  A new study finds that owning a home in early adult life adds approximately four months to the lives of male Americans born in the early twentieth century.
• Tiny, daily bursts of vigorous incidental physical activity could almost halve cardiovascular risk in middle-aged women December 4, 2024
  An average of four minutes of incidental vigorous physical activity a day could almost halve the risk of major cardiovascular events, such as heart attacks, for middle-aged women who do not engage in structured exercise, according to new research.