A. true. Because it allows you to see the reward of you doing the plan
Bones breaking is one example
Symptoms may worsen, and the illness may progress. This could result in a less positive outcome for the patient; example: longer recovery process, terminal/chronic illness, or even longer term, death.
Diseases, mainly autoimmune, depression, anxiety, a sickness such as a cold or fever, or even just a lack of motivation not linked to depression can be reasons people decrease their physical activity level.