Some people may worry that supplements containing large amounts of vitamin B-12 could be harmful. However, although some supplements — such as vitamin A or D — can be harmful if a person takes them in excess, vitamin B-12 seems safe in large doses.
Vitamin B-12 is...
Optic nerve stimulation to aid the blind:
Scientists from EPFL in Switzerland and Scuola Superiore Sant'Anna in Italy are developing technology for the blind that bypasses the eyeball entirely and sends messages to the brain. They do this by stimulating the optic nerve with a new...
Cotton swabs are not safe for cleaning ears, experts say.
A woman's daily habit of cleaning her ears with cotton swabs led to a life-threatening infection in her skull, according to news reports.
The 37-year-old woman, who is identified only as Jasmine, said she cleaned her ears every night...
Does Medicine Really Expire
Ever since 1979, the U.S. Food and Drug Administration (FDA) has required that pharmaceutical companies put expiration dates on prescription and over-the-counter medicines.
That doesn't mean your bottle of ibuprofen will go bad in the same way as, say, an expired carton of...
The neuroscience of autism:
UNC School of Medicine scientists unveiled how a particular gene helps organize the scaffolding of brain cells called radial progenitors necessary for the orderly formation of the brain. Previous studies have shown that this gene is mutated in some people with...