Is it true that performing triceps stretch helps to increase the flexibility in arm?

No, performing triceps stretch does not directly increase the flexibility in the arm. Triceps stretch primarily targets the triceps muscles, which are located at the back of the upper arm. Although stretching the triceps can help improve flexibility in the elbow joint and loosen tight muscles, it specifically affects the range of motion and flexibility in the arm. To improve overall flexibility in the arm, it is essential to perform a variety of stretches that target different muscles and joints, such as shoulder, elbow, wrist, and forearm stretches.