News
- Health & Medicine
Marrow converted into brain cells
Scientists can now efficiently transform bone marrow into nerve cells.
- Earth
Study gives new answer for muddy mystery
Geologists provide evidence that quartz silt in ancient seabeds doesn't come from eroded land rocks, but rather from the dissolved skeletons of tiny primitive creatures, possibly altering the fossil record and changing models of prehistoric climate and ocean geography.
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Strep infection sets off tics in some kids
Some children may have a genetic susceptibility to developing obsessive-compulsive disorder and tic ailments after a streptococcal infection.
- Health & Medicine
Carotid surgery stands test of time
Surgery to remove blockages from the carotid artery in the neck has lasting effects against stroke over several years and even provides some benefit when it's delayed.
