Autism adults living in teenagers

Overview

Autism is a lifelong developmental condition that affects how a person communicates, interacts with others, and experiences the world. It is called a spectrum because each person is different and has unique strengths and challenges.

Yes, autism is common. In the UK, about 1 in 100 people are autistic. Many are diagnosed in childhood, but some discover they are autistic as teenagers or adults.

Autism affects people of all genders, races, and backgrounds. It usually appears in early childhood, but the signs may become more noticeable during the teenage years or later in life. Autistic teens and adults often face social and sensory challenges but can lead fulfilling lives with the right support.

Symptoms

Common symptoms

• Difficulty understanding social cues, like body language or tone of voice
• Struggles with making eye contact or starting conversations
• Repetitive behaviors, such as rocking, hand-flapping, or following strict routines
• Very strong interests in specific topics
• Sensory sensitivities, like being bothered by bright lights, loud noises, or certain textures

Symptoms in children

• Delays in speaking or using gestures
• Not responding to their name by 12 months
• Lack of pretend play or interest in playing with other children
• Unusual reactions to sounds, smells, or touch

Symptoms in older adults

• Difficulty adapting to changes in routine or environment
• Increased sensitivity to sensory input, such as noise or light
• Challenges with social relationships and communication
• Strong reliance on routines and rituals

Causes

Main causes

• Genetic factors – autism tends to run in families
• Differences in brain development before or shortly after birth

Risk factors

• Having a family member with autism
• Being born prematurely or with a low birth weight
• Parents being older at the time of pregnancy

When to see a doctor

See a doctor urgently if:

• If you or a teen is in immediate danger of harm – call emergency services
• If there is a mental health crisis with suicidal thoughts

Book a routine appointment if:

• If you think you or your teen may be autistic and want an assessment
• If autistic traits are causing significant challenges at school, work, or home

Diagnosis

A diagnosis of autism is made by a specialist team, which may include a psychiatrist, psychologist, or speech and language therapist. They will gather information about development, behavior, and daily life.

Tests that may be done

• Developmental history interview (asking about childhood milestones)
• Observation of social and communication skills
• Questionnaires completed by the person and family members

What to expect at your appointment

The assessment process usually takes several appointments over a few months. It can feel lengthy, but it helps the team get a full picture. After diagnosis, you will receive a report and guidance on next steps.

Treatment

There is no cure for autism. Treatment focuses on helping the person manage challenges and build on their strengths. Support is tailored to individual needs.

Self-care at home

• Create a calm, predictable environment with clear routines
• Use noise-canceling headphones or dim lights if sensory overload occurs
• Engage in special interests for relaxation and joy
• Practice communication strategies, like using visual schedules or written notes

Medical treatments

Sometimes doctors prescribe medications to help with specific symptoms that cause distress, such as anxiety or sleep problems. These are always discussed with a healthcare provider and never the first step.

Living with this condition

Living with autism means finding what works for you. Many autistic teens and adults use routines, visual supports, and quiet spaces to manage daily life. Social situations can be draining, so planning downtime is important.

Lifestyle tips

• Set a regular sleep schedule to help with fatigue
• Find physical activities you enjoy, like walking, swimming, or cycling
• Engage with supportive online or in-person autistic communities

Diet and exercise

A balanced diet supports overall health. Some autistic people have strong food preferences or sensory aversions, so it is fine to adapt meals. Gentle exercise like yoga or walking can help manage stress.

Mental health and emotional wellbeing

Autistic people are more likely to experience anxiety, depression, and feeling overwhelmed. It is important to check in with your feelings and seek help from a therapist who understands autism.

Prevention

No, autism is not a disease that can be prevented. It is a natural part of human diversity. The goal is to support autistic people to live well, not to prevent autism.

Complications

If left untreated

• Social isolation and loneliness
• Mental health problems like anxiety and depression
• Difficulty finding or keeping a job
• Feeling misunderstood or overwhelmed

Long-term outlook

With understanding, acceptance, and the right support, autistic teens and adults can lead happy, meaningful lives. Many are successful in their careers, relationships, and hobbies. It is never too late to seek help and build a better life.

Find support

International organisations

• Autistic Self Advocacy Network ↗

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