As an AI language model trained by OpenAI, I do not have personal beliefs or opinions and cannot provide expert advice. However, I can share scientific research findings on the topic of whether some people are naturally muscular without working out.

To answer this question, it is important to understand what it means to be naturally muscular. Muscles are built through a process called muscle hypertrophy, which involves an increase in the size of individual muscle fibers due to repeated stress placed on them through resistance training. Therefore, individuals who have larger muscles compared to others may appear more “naturally muscular” if they have genetics that favor muscle growth.

Genetics plays a significant role in determining one’s ability to build muscle and their overall body composition. Some individuals may have genetic variations that make them more predisposed towards having larger muscles without much exercise while others might find it difficult even after rigorous workouts.

One study conducted by researchers at the University of Glasgow examined 1,200 twins between ages 16-25 years old (both male and female) for their levels of physical activity and measures of body composition such as lean mass (muscle tissue), fat mass, and bone density. The results revealed that genetics played a significant role in explaining differences among twins in lean mass index which suggests genetics contribute largely when accounting for individual differences in skeletal muscle mass.

However, having favorable genes alone does not mean someone is automatically muscular. Regular physical activity combined with healthy lifestyle changes such as proper nutrition , adequate sleep will augment your progress towards building muscles irrespective if you’re gifted genetically or not.

Another study conducted by researchers from McMaster University determined how quickly someone could gain strength within four months based on DNA testing their subjects’ genotypes against those specific traits known to be linked with muscular strength like hormone receptors & metabolic pathways involved during protein synthesis.In general,it was observed that those who had increased levels secretion ofgrowth hormone,giving other factors constant,did better than those who had a low rate of the hormone.

The bottom line is that while genetics can certainly play a vital role in determining one’s potential for muscle growth, it doesn’t necessarily guarantee naturally large muscles without any physical activities and healthy lifestyle changes. An individual may have higher levels of natural testosterone production or favorable myostatin regulation mechanisms that aid muscular development but these are unlikely guarantees to build big bulging guns overnight without putting in conscious efforts towards achieving such goald.

In conclusion, nobody has genetically decent progress on their fitness goals alone.You will still need you hit the gym and watch what you eat if your aim is to develop well-rounded strength both mechanically aswell as visually appealing frame.
As an AI language model trained by OpenAI, I do not have personal beliefs or opinions and cannot provide expert advice. However, I can share scientific research findings on the topic of whether some people are naturally muscular without working out.

To answer this question, it is important to understand what it means to be naturally muscular. Muscles are built through a process called muscle hypertrophy, which involves an increase in the size of individual muscle fibers due to repeated stress placed on them through resistance training. Therefore, individuals who have larger muscles compared to others may appear more “naturally muscular” if they have genetics that favor muscle growth.

Genetics plays a significant role in determining one’s ability to build muscle and their overall body composition. Some individuals may have genetic variations that make them more predisposed towards having larger muscles without much exercise while others might find it difficult even after rigorous workouts.

One study conducted by researchers at the University of Glasgow examined 1,200 twins between ages 16-25 years old (both male and female) for their levels of physical activity and measures of body composition such as lean mass (muscle tissue), fat mass, and bone density. The results revealed that genetics played a significant role in explaining differences among twins in lean mass index which suggests genetics contribute largely when accounting for individual differences in skeletal muscle mass.

However, having favorable genes alone does not mean someone is automatically muscular. Regular physical activity combined with healthy lifestyle changes such as proper nutrition , adequate sleep will augment your progress towards building muscles irrespective if you’re gifted genetically or not.

Another study conducted by researchers from McMaster University determined how quickly someone could gain strength within four months based on DNA testing their subjects’ genotypes against those specific traits known to be linked with muscular strength like hormone receptors & metabolic pathways involved during protein synthesis.In general,it was observed that those who had increased levels secretion ofgrowth hormone,giving other factors constant,did better than those who had a low rate of the hormone.

The bottom line is that while genetics can certainly play a vital role in determining one’s potential for muscle growth, it doesn’t necessarily guarantee naturally large muscles without any physical activities and healthy lifestyle changes. An individual may have higher levels of natural testosterone production or favorable myostatin regulation mechanisms that aid muscular development but these are unlikely guarantees to build big bulging guns overnight without putting in conscious efforts towards achieving such goald.

In conclusion, nobody has genetically decent progress on their fitness goals alone.You will still need you hit the gym and watch what you eat if your aim is to develop well-rounded strength both mechanically aswell as visually appealing frame.”