what do you mean? explain yourself! what's your question?
Short term:
The illness will get worse
Long Term:
When a person who has a mental health disorder does not treat the disorder, a number of associated physical issues can occur. Such as depression and anxiety
1. prepare the body for exercises by gradually increasing the heart rate and circulation
2. will loosen the joints and increase blood flow to the muscles. (Stretching the muscles prepares them for physical activity and prevents injuries)