Research shows that intense exercise, especially strength training and high-intensity interval training (HIIT), can significantly increase blood levels of somatotropin. These workouts put stress on muscles, which triggers tissue repair and growth mechanisms, which in turn stimulates growth hormone production. Strength training exercises such as squats, deadlifts, and bench presses are some of the most effective for this. It is important to note that the production of growth hormone also depends on the duration and intensity of the workout: the higher the load, the more hormone is produced. It is also worth mentioning that lack of sleep or stress can suppress the production of the hormone, so it is important to keep a proper regime. For more information on growth hormone and its relationship to physical activity, you can read the ecbt website, which contains useful research and advice. Additionally, if you're considering HGH for sale, make sure to consult reputable sources and seek proper medical guidance before making any decisions.