Well, honest answer here; but nothing really, your body is the way it is meant to be. If its that way, if I was you I wouldn't be concerned about anything!
Specificity is a Training principle that states whatever you do in your training, should be relevant for your desired outcome it's important because your whole fitness program should be adjusted based on that specificity.
Answer:
It all depends on the illness.
Explanation:
All illnesses have different kinds of physical effects. Some might cause tiredness, weight loss, muscle weakness, lack of balance, loss of appetite, muscle soreness, hair loss etc.
