10 myths and facts about root canals. 1  1 â A root canal treatment is a painful procedure. 2  2 â A root canal is a costly treatment. 3  3 â A root canal removes the pain immediately after the procedure. 4  4 â Root canals do not work. 5  5 â It is normal that a tooth remains a little sensitive after a root canal. 6  6 â A root canal âkillsâ the tooth. False. A root canal cleans and disinfects the inside of the tooth to allow it to heal; it does not kill a tooth. The nerves and the blood vessels located in the pulp chamber server for the development of a tooth when a person is a child or a teenager.
Longest time in an abdominal plank position. The longest time in an abdominal plank position is 8 hours 1 minutes and was achieved by Mao Weidong (China) on an event organized by Men's Health in Beijing, China on 14 May 2016. The event started at 10:26 in Beijing Shangri-La Hotel, participated by Mao Weidong and George Hood.
Swiss freediver breaks world record for holding breath underwater. Peter Colat, a Swiss freediver, has held his breath underwater for 19 minutes and 21 seconds, smashing the world record. Switzerland's Peter Colat held his breath for 19 minutes and 21 seconds while being underwater Photo: KEYSTONE.