World Autism Day is celebrated annually on April 2, and the whole month of April is devoted to raising awareness, yet still very little is known or understood about the condition.
Autism spectrum disorder (ASD) typically appears within the first three years of life and is classified as a developmental condition that affects how individuals communicate, interact with others, and experience the world around them. The term “spectrum” reflects the wide range of strengths, symptoms, and challenges experienced by people with autism. No two individuals experience autism the same.
What is Autism Spectrum Disorder?
Clinicians use the Diagnostic and Statistical Manual of Mental Disorders, Fifth Edition (DSM-5) to diagnose mental health and developmental conditions such as autism spectrum disorder. According to DSM-5, autism is characterized by two key differences: challenges for the individual in social communication and social interaction, and in restricted or repetitive behaviors, interests, or activities.
Signs of autism typically emerge early in childhood, though a more formal diagnosis may be required later in adulthood. A diagnosis of autism is made when an individual’s symptoms create developmental challenges that cannot be better explained by other conditions.
Common signs of Autism
Autism can be present in many ways, but some commonly observed characteristics include:
Reduced eye contact
Differences in body language or facial expressions
Limited engagement in imaginative play
Repetitive movements or sounds
Highly focused interests
Reduced sensitivity to temperature extremes
It is important to note that having one or more of these traits does not automatically mean a person has autism. Only a qualified medical professional can make a diagnosis.
Autism by the numbers
For decades, autism was considered rare and estimated to affect only roughly 2,000 children, mainly due to limited awareness and previously confusing diagnostic criteria.
Autism has since become so prevalent in American society, The American Academy of Pediatrics now recommends all children be screened for autism during their 18- and 24-months regularly scheduled well-child visits.
Rarely, individuals are diagnosed in adulthood. Still today, the typical age of an autism diagnosis is before the age of 8 for most.
Most likely due to the recent push for more widespread testing, autism diagnoses are becoming increasingly more common—with boys, more likely than girls, to be diagnosed.
Ongoing research is needed to continue investigating how race, ethnicity, and socioeconomic factors are influencing current autism diagnosis rates.
The importance of awareness
First established in April 1978, Autism Awareness Month is observed each year in April with the goal of serving as an opportunity to promote understanding, acceptance, and support for individuals with autism and their families. To show their backing, supporters are encouraged to wear blue on Autism World Awareness Day, held annually April 2, in a continued effort to draw attention to understanding autism.
Since 1978, bringing awareness to ASD has become a broader and wider reaching initiative, with promoters creating other ways to show inclusivity through awareness opportunities like Autism Speaks and the “Light it up Blue” campaign—encouraging landmarks, schools, businesses, etc., to use blue lighting to symbolize their support and understanding.
Understanding autism is not just about learning symptoms or statistics, it’s about seeing the person, encouraging inclusion, and supporting people throughout their lives, not just when a diagnosis is made.
Famous faces of autism
· Sia – Singer-songwriter Sia has spoken candidly about her autism diagnosis.
· Tallulah Willis – Actress and daughter of Bruce Willis, Willis shared her autism diagnosis in 2024.
· Wentworth Miller – Actor best known for Prison Break, Miller is said to have received an informal autism diagnosis in 2021.
· Dan Aykroyd – Comedian and actor Dan Aykroyd is open about his autism diagnosis.
· Greta Thunberg – Climate activist and environmental leader, Thunberg has also spoken about her autism diagnosis.
· Anthony Hopkins – Academy Award-winning actor, Anthony Hopkins has also been open about his autism diagnosis.
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