The relationship between stress and illness is complex. The susceptibility to stress varies from person to person. Among the factors that influenced the susceptibility to stress are genetic vulnerability, coping style, type of personality and social support. Not all stress has negative effect. Studies have shown that short-term stress boosted the immune system, but chronic stress has a significant effect on the immune system that ultimately manifest an illness.
Signs of respiratory distress or irregular sounds coming from the respiratory system (coughing, sneezing,wheezing,etc)
Skin color, redness or other clue on the surface of the patient's skin.
Signs of dizziness, lack of awareness, drowsiness, and the general way the patient appears. Do they appear sick, do they appear depressed, anxious, etc.
people who are more physically active tend to have a faster metabolism than those who are not. thus, their bodies break down foods faster and process those nutrients at a quicker pace than the latter.