Traits of Highly Sensitive People
It is important for HSPs to understand that their unique biology is the basis for their trait.
Physical Traits Of Highly Sensitive People
HSPs can have sensitivities to loud noises, bright lights, too much television, and sometimes are sensitive to fabrics.
Sharon Heller, Ph.D. in her 2002 book Too Loud, Too Bright, Too Fast, Too Tight  describes how some have especially serious reactions which she calls sensory defensiveness. The situations creatine sesory defensiveness can include:
- touch from others
- loud, sudden or piercing sounds
- constant noise
- bright lights
- constant visual stimulation
- chemical induced reactions
- reactions to some foods and food textures
- anxiety from sudden and fast movement
- roller coasters
Predisposition To Health Issues
Highly sensitive people often suffer from stress. Some also have genetic and stress disorders. In general, highly sensitive people need frequent breaks, alone time to recharge and simpler lifestyles to manage more effectively.
These stress challenges can be made worse by a life style that exacerbates them. One of the traits of highly sensitive people is that they are different so that trying to fit in to the dominant highly stimulative culture will only stress the HSP system. Therefore, HSPs must develop an understanding of what they can handle, what limits they need to set for themselves and others, and ways to manage stress.
Emotional and Social Traits of Highly Sensitive
The characteristic of being a highly sensitive person is often inherited - a sensitive nervous system that affects every aspect of the HSPs life.
The sensitive nervous systems of the highly sensitive people mean that they have strong emotions and empathetic natures. HSP intensity can make relationships difficult. Their desire for deep conversation can be uncomfortable to non-HSPs.
There is some evidence that trauma may be a factor in HSP
sensitivities. David Ritchey's H.I.S.S. questionnaire documented the prevalence of
emotional and physical abuse among "anomalously sensitive people" his term for
highly sensitive people.  Elaine Aron
warns that HSPs are more affected by a difficult abusive childhood and need to
take special care to heal their wounds. HSPs do not heal that easily from wounds
sustained in a relationship so relationships can be a challenge, and many HSPs
chose to limit their relationships.
In some situations, if an HSP is interacting with someone with very different values, it may not be possible to have a mutually rewarding relationship without too much sacrifice or harm. Although many people are kind and compassionate, boundary issues can be difficult and require creativity to resolve.
Energy Sensitivity and Psychic Traits of Highly Sensitive People
David Ritchey's H.I.S.S. questionnaire also documented the psychic sensitive characteristics of anomalously sensitive people. Many highly sensitive people are very sensitive to all forms of energy: electromagnetic, interpersonal etc. Some have capacities he calls Transpersonal Experiences which fall in three categories:
- transpersonal perceptions: deja vu, synchronicity, telepathy, precognition, psychic dream and clairvoyance
- transpersonal influence: psychic healing, psychokinesis and electrical
- transpersonal manifestation of mind: contact with spirit guides, out-of-body experiences, past-life recall, apparition, mediumistic episode, UFO sighting, near death experience, spirit possessions, and alien contact.
The importance of Introversion's role in ASPness* has to do with creating a sense of independence that buffers one against societal pressures toward conformity."
David Ritchey, The H.I.S.S of the A.S.P.
*ASPness refers to anomalously sensitive person
HSPs and Myers-Briggs Type Indicator: Talent Traits of Highly Sensitive People
Highly sensitive people are generally intuitive and introverted so generally fall in the categories of INFJs (counselors), INFPs INTJs (mastermind/system builder) and INTPs(architect). However, approximately 30% of HSPs are extroverted, and may be extroverted intuitives: ENFJs (teacher), ENFPs (champion), ENFJs (field marshal) and ENTPs (inventor).
 Sharon Heller, Too Loud, Too Bright, Too Fast, Too Tight, (New York, Harper Collins, 2002), 4-6.
 David Ritchey, The H.I.S.S. of the A.S.P. Understanding the Anomalously Sensitive Person, (West Virginia, Headline Books, 2003), 81-87.
 Elaine N. Aron, Ph.D.,The Highly Sensitive Person, (New York, Broadway Books, 1996) 168.
 David Ritchey, The H.I.S.S. of the A.S.P. Understanding the Anomalously Sensitive Person, (West Virginia, Headline Books, 2003), 216-218.
 David Ritchey, The H.I.S.S. of the A.S.P. Understanding the Anomalously Sensitive Person, (West Virginia, Headline Books, 2003), 89-103.