Individuals may become addicted to drugs no matter their handicap or unique physical challenge. This sometimes makes people significantly more vulnerable to becoming involved in alcohol or drug addiction, due to the varying challenges that may pop up in the perspon's life. This is often a factor for people in the deaf and hearing impaired community as well, and rehab for substance abuse disorders is sometimes necessary. Deaf or hearing impaired individuals will need ASL or other help as part of their rehab needs, and there are alcohol and drug rehab facilities available throughout the Knightsen, California area which cater to these special needs. Professional drug rehab counselors who know ASL and can offer other crucial assistance to deaf or hearing impaired substance abusers are readily available in a number of drug treatment programs around Knightsen and in the United States.