In humans, heavy metal poisoning is generally treated by the administration of chelating agents. Some elements otherwise regarded as toxic heavy metals are essential, in small quantities, for human health.
Bolivian movie marathon 2011 â Photo: Giannina Machicado/La Prensa. Finally, this morning the longest movie marathon in history ended after 200 hours, 30 minutes and 50 seconds. The last two people left in the race, Ronald Cuellar (Santa Cruz) and Huber Felipez (Cochabamba), agreed to call it a draw and split the $10,000 prize.
121st Boston Marathon on April 17, 2017. DISTANCE: 26 MILES, 385 YARDS (42.195 KILOMETERS) The Boston Marathon is the world's oldest annual marathon and ranks as one of the world's most prestigious road racing events. The Boston Athletic Association manages this American classic, which is sponsored by John Hancock Financial Services.