Answer: Amnesia or Alzheimer Disease
Explanation: i would think that because Alzheimer is were your memory slowly fades away and most people forget how to do daily things. Amnesia is from head trauma and has effected the Limbic system, which is what controls the emotions and memories we have....
My best guess would be A
Please put me as a Brainlier
Cold can be caused by cold weather out side and the flu u can get from other people that are sick or bad living enviroments or rotton food
Heat stroke can kill or cause damage to the brain and other internal organs, and is most likely to effect someone doing an activity like, Working out, playing soccer, playing basketball.
Hopefully this could help :)
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.