The primary features of ADHD include inattention and hyperactive-impulsive behavior. ADHD symptoms start before age 12, and in some children, they're noticeable as early as 3 years of age. ADHD symptoms can be mild, moderate or severe, and they may continue into adulthood.
However, the noticeable beginning of ADHD symptoms typically occurs early in childhood. Before the age of 5, ADHD symptoms may be difficult to diagnose, because most young children are highly energetic, easily distractible, and impulsive. Therefore, the average age of diagnosis is 8 years for ADHD and 10 years for ADD.
Can an adult be diagnosed with ADHD even though she didn't have symptoms of the disorder in childhood or adolescence? There is growing evidence that ADHD is emerging for the first time in adulthood for some people.
In short - no. ADHD doesn't just show up out of nowhere during adulthood. Adults don't wake up one day and suddenly have ADHD — but it can certainly feel that way.
Is ADHD inherited from Mom or Dad? You can inherit genes that boost risk for ADHD from your mother, from your father or from both parents.
Causes of ADHD
Recent studies link genetic factors with ADHD. In addition to genetics, scientists are studying other possible causes and risk factors including: Brain injury. Exposure to environmental risks (e.g., lead) during pregnancy or at a young age.
A medical, physical or neurodevelopmental exam identifies if you or your child meets the criteria for ADHD symptoms, including hyperactivity, inattention or impulsivity. Recording symptoms using rating scales and other sources of information ensures you or your child meets standardized criteria.
What is the difference between ADD and ADHD? There is no difference between ADD and ADHD. ADD (attention-deficit disorder) is an outdated term for what is now called ADHD (attention-deficit hyperactivity disorder). Some kids with ADHD have hyperactive behaviors and some don't, but the diagnosis is ADHD either way.
Many people think that ADHD is a result of trauma, but is it true? The answer is yes, but more for some people than others. The truth is that 90% of the time ADHD is not caused by trauma, but if the trauma is extreme enough, it can cause severe ADHD-like symptoms.
Age of Onset
More severe cases of ADHD in children, as described by parents, were diagnosed earlier. The median age of diagnosis for severe ADHD was 4 years. The median age of diagnosis for moderate ADHD was 6 years. The median age of diagnosis for mild ADHD was 7 years.
The brain's frontal lobes, which are involved in ADHD, continue to mature until we reach age 35. In practical terms, this means that people with ADHD can expect some lessening of their symptoms over time. Many will not match the emotional maturity of a 21-year-old until their late 30's.
Genetics. ADHD tends to run in families and, in most cases, it's thought the genes you inherit from your parents are a significant factor in developing the condition. Research shows that parents and siblings of someone with ADHD are more likely to have ADHD themselves.
ADHD Statistics: Demographics, Race & Ethnicity
Black children aged 3 to 17 years are more likely to have ever been diagnosed with ADHD or a learning disability (16.9 percent) compared to white (14.7 percent) and Hispanic children (11.9 percent).
Sodas, Caffeine, and High-Fructose Corn Syrup Cause ADHD Symptoms. If you have ADHD, consider eliminating soda. (Even if you don't have ADHD, saying no to soda is a good idea.) These drinks often have many of the same sugars and sweeteners that make candy a bad idea for kids on the ADHD diet.
Autism is very distinct from ADHD, but the core symptoms of ADHD-Combined type, i.e., attention deficit, impulsivity, and hyperactivity, would appear to also be features of autism. ASD and ADHD are neurobiological disorders characterized by similar underlying neuropsychological “deficits”.
If left untreated, ADHD can lead to problems with productivity, interpersonal relationships, and further mental health problems.
“Nobody has perfect memory… but for [people with ADHD], it's extreme. They feel like they're lost all the time,” Almagor said. He believes this is why people don't take ADHD seriously. “I think that's why some people don't respect the severity of what [a person with ADHD] can experience,” he said.
With ADHD, a child or teen may have rapid or impulsive speech, physical restlessness, trouble focusing, irritability, and, sometimes, defiant or oppositional behavior.
The main signs of ADHD are inattention, hyperactivity, and impulsivity. Some people have trouble in all three of those areas. Some primarily have problems with inattention. And others may primarily have problems with impulsivity and hyperactivity.