The ACTN3 gene codes for actinin alpha-3, a protein found in fast-twitch muscles. Some people don’t produce this protein, which changes the composition of their muscles. Elite athletes may be limited by this genetic change.
Heat shock proteins are activated by cells in response to a stressful condition, such as exposure to high heat. Learn more about the essentials of heat shock proteins, including how to activate them and the genetic variants that impact how well they work.
The SIRTfood diet, made popular by Adele’s recent weight loss, theoretically works by affecting your sirtuin gene expression. Learn about your SIRT genes and your genetic variants.