According to the Center for Disease Control (CDC), a child with ADHD might:
- Frequently daydreams
- Forget or lose things frequently
- Squirm or fidget
- Talk too much
- Make careless mistakes or take unnecessary risks
- Have a hard time resisting temptation
- Have trouble taking turns
- Have difficulty getting along with others
Causes and Risk Factors
The average age of onset is 7 years old and can continue through adolescence and into adulthood. Research has shown that boys are four times more at risk than girls. Furthermore, the Center for Disease Control (CDC) reports that in addition to genetics, scientists are studying other possible causes and risk factors including:
- Brain injury
- Environmental exposures (e.g., lead)
- Alcohol and tobacco use during pregnancy
- Premature delivery
- Low birth weight
Research does not support the popularly held views that ADHD is caused by eating too much sugar, watching too much television, parenting, or social and environmental factors such as poverty or family chaos. Although, symptoms may be exacerbated by the aforementioned, evidence is not strong enough to conclude that they are the main causes of ADHD.
References:
National Institute of Mental Health
Attention Deficit Hyperactivity Disorder (2016, March). Retrieved from http://www.nimh.nih.gov/health/topics/attention-deficit-hyperactivity-disorder-adhd/index.shtml#part_145444
Center for Disease Control
Attention-Deficit Hyperactivity Disorder (ADHD) (2016, January 22). Retrieved from http://www.cdc.gov/ncbddd/adhd/