• Attention-deficit hyperactivity disorder (ADHD)
• Learning disabilities (including dyslexia)
• Psychosocial disabilities (mental illnesses or mental disorders)
• Neurological impairments (such as brain injury)
• Chronic health conditions (including chronic fatigue syndrome)
• Energy-fluctuating conditions (such as pain conditions like Ehlers-Danlos)
• Psychiatric conditions (various mental health disorders)

These categories demonstrate the diverse range of conditions that fall under the invisible disability umbrella, spanning mental health, cognitive, neurological, and chronic health conditions.