Scientists Identify Genes That Shape People's Teeth

 How Genetics Affect Your Running Ability By: Daniel Molinos A study from the University of Essex in England explains how genetics may play a role in determining how fast and how well someone can run. According to the study, fewer than 31 percent of people have a unique genetic combination that allows them to get the most out of their training efforts. One gene in particular, known as ACTN3 , is associated with adaptability, speed, power, improved strength, and reduced risk of injury. Researchers found that all of the top performers in the study shared a variant of this gene. The test was conducted on men and women between the ages of 20 and 40 and lasted for eight weeks. During the study, researchers used the Cooper Test , a method often used by the military to measure aerobic fitness. Participants were asked to run as far as possible in 12 minutes. After completing the training period, researchers observed that those who possessed the ACTN3 gene improved their performance by an ...

 Scientists Find discovery of Genes That Shape People's Teeth. Daniel Molinos A study published in US News by Dennis Thompson Health Day Reporter.       Ever wondered why your teeth are shaped the way they are? Researchers identified 18 genes that influence tooth development, including 17 that had not previously been connected to dental traits. Researchers analyzed data from around 900 volunteers in Colombia, all of whom had a mix of European, Native American, and African ancestry, using 3D scans to measure tooth crowns and compare those measurements with people's genetics. Researchers also found a gene variant likely inherited from Neanderthals that came from interbreeding with early humans. This gene was mainly found in people of European ancestry and is associated with thinner incisors, which are the front teeth you use to bite into food. Researchers also discovered the gene EDAR, typically found in East Asian populations, which is known to influence tooth wi...