SUPERPOWERS: REFLEXIVE VS VOLUNTARY

When it comes to superpowers, I am thinking of applying them in the way that the human nervous system is arranged. Voluntary nerve impulses are activated through a person’s will while reflexive nerve impulses act independently of the will. With this in mind, I am thinking of making some superhuman powers activated by their wielder’s will while others remain constantly active when the wielder wants them to be or not. For instance, their intelligence, strength, speed, and durability would remain constantly active while other powers like telekinesis, heat vision, and telepathy can only be activated by the user’s will. What do you think of this concept? Please share your thoughts.