Tag: cognitive impairment

  • Nation & World

    Hallmarks of Alzheimer’s found well before diagnosis

    A new study shows the impact of early amyloid-β and tau protein accumulation on disrupting brain connections important for memory. These disrupted connections were present even before signs of cognitive impairment were observed.

    4 minutes
    This illustration shows the two main forms of disruptive protein clumps found in the brains of people with Alzheimer’s disease:
  • Nation & World

    A hidden risk

    A new study by S. Allen Counter, clinical professor of neurology and director of the Harvard Foundation, shows that high levels of lead, as well as other toxic metals such as mercury and cadmium, can pass from mother to child through breast milk.

    4 minutes