What is one of the primary effects of anabolic steroids on the body?

Anabolic steroids are synthetic derivatives of testosterone, designed to promote muscle growth and enhance physical performance. One of their primary effects is the increase in muscle mass and strength, which occurs through several mechanisms. These steroids stimulate protein synthesis in the muscles, leading to greater muscle hypertrophy and the ability to increase workout intensity and volume. They also enhance recovery times, allowing individuals to train more frequently and at higher intensities, which further contributes to muscle growth.

The increase in muscle mass and strength is particularly appealing to athletes and bodybuilders looking to improve their performance and physique. While there may be some changes in body fat levels, the primary and most prominent effect of anabolic steroids is the notable gains in strength and lean muscle tissue.

In contrast, the other options have lesser or indirect associations with anabolic steroids. Decreased body fat can occur indirectly as a result of increased muscle mass and metabolic rate, but it is not a primary effect. Enhanced flexibility and balance are not typical outcomes of anabolic steroid use, nor is improved cardiovascular endurance, which is more closely linked with aerobic training rather than muscle-building processes. Therefore, increased muscle mass and strength stands out as the primary and direct effect of anabolic steroids.