The use of steroids for muscle growth can have long-lasting effects, even after steroid use is discontinued. This is because steroids can increase testosterone levels, which triggers muscle growth. One type of steroid, Trenbolone, is particularly effective at providing permanent muscle gains. According to a study published in The Journal of Physiology, brief exposure to performance-enhancing drugs like steroids may have long-lasting or even permanent performance-enhancing effects. This is because steroids can cause long-term changes in human skeletal muscles by adding nuclei DNA to muscle fibers and accelerating retraining.
The benefits of steroid use may persist for years after an athlete has stopped using the drugs. A study published in The Journal of Physiology found that testosterone can boost the number of cell nuclei in muscle fibers, which can help build muscle long after exposure to the drug. Similarly, a study of mice suggests that steroids may continue to boost muscle-building capacity long after a person stops taking the drugs. This means that athletes may continue to benefit from steroid use for a decade or more after stopping use. However, it is important to weigh the potential benefits and risks before deciding to use steroids for muscle gain, as they can also cause negative side effects such as liver damage, high blood pressure, and an increased risk of heart disease, as well as acne, hair loss, and mood swings.