What are the environmental factors that cause intellectual or developmental delay?

Other environmental neurotoxicants that have been shown to produce developmental neurotoxicity include polychlorinated biphenyls (PCBs), dioxins, pesticides, ionizing radiation, environmental tobacco smoke, and maternal use of alcohol, tobacco, marijuana and cocaine.

What are the environmental cause of intellectual disabilities?

Environmental exposure to toxins

Pre- and post-natal exposure to toxins can cause intellectual disabilities. Of particular concern are lead, mercury, and radiation. Avoiding exposure to these toxins reduces the risk of developing an intellectual disability. Mercury is found in polluted waters.

What are the biological and environmental factors that can cause intellectual and developmental disabilities?

Common causes of developmental disabilities include genetic or chromosomal abnormalities, substance exposure, preterm birth, low birth weight and specific infectious diseases. Environmental toxicants have the ability to play a role in each of these causal mechanisms.

What is the most common cause of developmental delay?

Causes of Developmental Delay

Genetic or hereditary conditions like Down syndrome. Metabolic disorders like phenylketonuria (PKU) Trauma to the brain, such as shaken baby syndrome. Severe psychosocial trauma, such as post-traumatic stress disorder.

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What are three factors that may put a child at risk for developmental delays?

These factors include genetics; parental health and behaviors (such as smoking and drinking) during pregnancy; complications during birth; infections the mother might have during pregnancy or the baby might have very early in life; and exposure of the mother or child to high levels of environmental toxins, such as lead …

What are three leading causes of intellectual disabilities?

The three major known causes of intellectual disability are Down syndrome, Fetal Alcohol Spectrum Disorder (FASD) and Fragile X syndrome.

What are examples of intellectual disabilities?

Examples of intellectual and developmental disabilities include:

  • ADHD.
  • Autism spectrum disorder.
  • Cerebral palsy.
  • Hearing loss.
  • Vision impairment.
  • Spina bifida.

What are the most common intellectual disabilities?

5 Most Common Types of Intellectual Disabilities

  1. Autism. Autism is an intellectual disability affecting the nervous system and the structure and function of the brain. …
  2. Down’s Syndrome. …
  3. Fragile X Syndrome. …
  4. Fetal Alcohol Syndrome. …
  5. Prader-Willi Syndrome (PWS)

What are the 5 categories of developmental delays?

There are five types of developmental disabilities which include autism spectrum disorder (ASD), cerebral palsy (CP), intellectual disability (ID), attention deficit hyperactivity disorder (ADHD), and learning disabilities.

What are the environmental risk factors?

Known environmental risk factors include:

  • Tobacco. …
  • Alcohol. …
  • Obesity. …
  • Ultraviolet radiation. …
  • Asbestos. …
  • Viruses. …
  • Ionizing radiation.

What are the factors affect child development?

10 Factors That Influence the Growth and Development of a Child

  • Heredity. Heredity is the transmission of physical characteristics from parents to children through their genes. …
  • Environment. …
  • Sex. …
  • Exercise and Health. …
  • Hormones. …
  • Nutrition. …
  • Familial Influence. …
  • Geographical Influences.
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