Why do some guys get bigger muscles than other guys?

 The size and strength of muscles can be influenced by a variety of factors such as genetics, lifestyle, diet, and exercise habits. Some people may be genetically predisposed to build more muscle mass than others due to differences in their genetic makeup.

For example, some individuals may have a higher number of muscle fibers, greater muscle density, or better muscle recovery and adaptation mechanisms. These factors can contribute to greater muscle growth and development over time.

Lifestyle factors such as diet and exercise habits can also play a role. Adequate protein intake and regular resistance training can help to stimulate muscle growth and development. However, factors such as sleep quality, stress levels, and overall health can also impact muscle growth and recovery.

It's important to note that individual differences in muscle growth and development are completely normal and do not necessarily reflect one's strength or athletic ability. With consistent effort and a healthy lifestyle, anyone can make progress towards building stronger and healthier muscles, regardless of their genetic predisposition.