Many cognitive impairments are quite common, such as attention difficulties and dyslexia. Cognitive impairments are often less observable and well-defined than other types of impairments, so it is helpful to consult a doctor or learning specialist to help clarify the exact nature of the impairment. Used, for instance, in a medical setting to remind clinicians of necessary tests or interventions. Useful especially to people with memory impairments. Repetitive stress injuries can also result from excessive repeated movement with little variation, such as typing and using a mouse.
Damage occurs to soft body tissues, such as tendons and nerves.
Poor wrist support and posture during extensive typing is considered a contributing factor. Some ways to prevent it include improved posture, wrist supports, and taking regular breaks to stretch and rest. RSI can be avoided by using a good posture, varying tasks, and taking frequent breaks to stretch and relax. Color Blindness Color blindness is an inability to distinguish certain color combinations. To avoid problems for users with color blindness, make sure that color is never the sole way of distinguishing objects.