Chelation therapy is the intravenous administration of chelating agents to remove heavy metals from the body. Chelating agents work by making chemical bonds with metal ions, resulting in a water-soluble complex that can enter the bloodstream and be harmlessly excreted. Introduced during World War I to treat soldiers exposed to poison gases, chelation therapy is now used to treat acute toxic metal poisoning. Some alternative medicine advocates claim it can also be used to treat what disorder?
William Makepeace Thackeray
Back in the day
In April 1989, Chinese students gathered in Tiananmen Square to demand democratic reform. The demonstrators were gradually joined by workers, intellectuals, and civil servants, until over a million people filled the square and martial law was declared. The protesters demanded that the leadership resign, and the government answered, on June 3, with troops and tanks, killing thousands to quell a "counterrevolutionary rebellion." What happened in the aftermath of these events?
Born on a day like today
Davis was the only President of the Confederate States of America during the American Civil War. He served in both houses of the US Congress, fought in the Mexican War as colonel of a volunteer regiment, and was elected President in 1861. A West Point graduate, Davis prided himself on his military skills and closely managed the Confederate army. When the war ended, he was indicted on charges of treason and imprisoned for two years. Davis was briefly married to the daughter of what US president?