HSPs are highly sensitive to their environment. For example, they’ll usually experience heightened levels of stimulation to sounds, smells, light, taste, and emotion. Also, HSPs may also be able to hear sounds that may be barely perceptible to everyone else. Furthermore, sometimes this heightened sensory experience can be uncomfortable or even painful for an HSP, and they may need to withdraw or limit their exposure to certain things. But sensitivity to their environment is not the only trait of an HSP: