Alzheimer's Attack On Inner Brain Kills Memories
NPR Wed, 28 Jan 2009 9:30 PM PST
A new study may explain why people with Alzheimer's often remember events from the distant past, but not what they did yesterday. The area first damaged by the disease is the hippocampus, a structure deep inside the brain thought to be necessary to form new memories, but that may play little or no role as memories get older. |
Special brain cells trigger urge to sleep
New Kerala Wed, 28 Jan 2009 11:45 PM PST
Washington, Jan 29 : Brain cells called astrocytes trigger the urge to sleep that comes with prolonged wakefulness, according to a study based on mice. The study could lead to better drugs for inducing sleep when it is needed, and for staving off sleep when it is dangerous. |
| |
|
No comments:
Post a Comment