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...body's absorption of lead. In extreme cases of extended lead exposure, doctors use drugs called chelating agents, which bind to the lead and pull it out of the body through urine. In severe cases of prolonged poisoning, however, the cognitive and developmental damage may be permanent, says Dr. Cristiane Lin, the study's lead author, who is now at Seton Medical Center in Austin, Texas. (See pictures of what the world eats...
...maximum for cell-phone-signal exposure is intended to prevent RF radiation from heating tissue to the point that cells are damaged. Cell-phone RF radiation's "effect on the body, at least at this time, appears to be insufficient to produce genetic damage typically associated with developing cancer," Dr. Robert Hoover, director of the National Cancer Institute's Epidemiology and Biostatistics Program, testified at a 2008 congressional hearing...
...tumors that were diagnosed by 2002 - not long after daily use of cell phones became widespread. Brain cancers can take several decades to develop, so it might be many years before a measurable bump in cancer rates shows up. "The latency period we have is far too short," says Dr. Siegal Sadetzki, a cancer researcher at Israel's Gertner Institute whose epidemiological studies have found some connections between cell-phone use and salivary-gland tumors. "And today, people are using the phone much more heavily." (See TIME's special report "How to Live 100 Years...
Public-health studies suggest that people who live in mountaintop mining areas have "higher rates of lung cancer, chronic lung, heart and kidney disease mortality [and] lower birth rates" than average, possibly caused by breathing in coal dust or absorbing harmful chemicals, says Dr. Michael Hendryx, a professor of community medicine at West Virginia University, who studies health effects from mining...
Such is the philosophy behind the 12th annual Dr. Walter J. Leonard Black Arts Festival, which brought Black Art to the forefront of Harvard’s campus from March 4 through 6. Presented by the Kuumba Singers of Harvard College, the Black Arts Festival (BAF) focused on giving a voice to artists from Harvard and beyond, allowing them to reflect on the roots of their identities...