What Causes It?
Genetic factors - ADHD tends to run in families, with heritability estimated at 74%. Studies in Indian families confirm similar genetic patterns to those observed globally
Neurological differences - Structural and functional differences in the brain, particularly in areas involved in executive function, attention, and impulse control
Neurotransmitter imbalances - Differences in dopamine and norepinephrine systems that regulate attention and impulse control
Prenatal exposures - Maternal smoking, alcohol use, or drug use during pregnancy increases risk, though smoking rates among Indian women are lower than global averages
Premature birth or low birth weight - Associated with higher rates of ADHD, a significant factor in India where rates of low birth weight are higher than global averages
Birth complications - Hypoxia (oxygen deprivation) or other significant birth complications, which may be more common in areas with limited access to advanced obstetric care
Socioeconomic factors - In India, studies show higher ADHD prevalence in middle and upper socioeconomic groups, possibly related to increased awareness and diagnosis
Urban environment - Indian research shows significantly higher ADHD rates in urban compared to rural settings, possibly due to lifestyle factors, environmental stressors, or access to diagnostic services
Environmental toxins - Exposure to lead, pesticides, or air pollution, particularly relevant in Indian urban centers with high pollution levels
Family structure - Studies in India have found associations between ADHD and two-parent family structure, parental psychiatric disorders, and other family-related factors
Signs & Symptoms
Inattention - Difficulty sustaining focus, especially on tasks requiring sustained mental effort
Makes careless mistakes in schoolwork due to lack of attention to detail
Appears not to listen when spoken to directly, even in the absence of obvious distractions
Fails to follow through on instructions or complete tasks
Has difficulty organizing tasks and activities, often losing necessary materials
Avoids or dislikes tasks requiring sustained mental effort
Is easily distracted by extraneous stimuli or unrelated thoughts
Is forgetful in daily activities, such as chores, errands, or appointments
Hyperactivity - Excessive movement and restlessness
Fidgets with hands or feet, squirms in seat even when expected to remain seated
Runs or climbs excessively in situations where it's inappropriate
Has difficulty playing or engaging in leisure activities quietly
Appears to be "driven by a motor," constantly on the go
Talks excessively, often blurting out answers before questions are completed
Impulsivity - Acting without thinking about consequences
Interrupts or intrudes on others' conversations or games
Has difficulty waiting turn in games or group situations
Blurts out answers before questions have been completed
May engage in potentially dangerous activities without considering consequences
Symptoms must be present in multiple settings (home, school, social situations)
Symptoms must cause significant impairment in social, academic, or occupational functioning
Symptoms must not be better explained by another mental disorder