Im guessing because the smoke is toxic!! Im not sure but it most likely has something to do with the smoke/toxins in the air
Answer:
Severe deficiency, called pellagra, can cause symptoms related to the skin, digestive system, and nervous system.
Explanation:
Controllable risk factors include:
Smoking.
High LDL, or "bad" cholesterol, and low HDL, or "good" cholesterol.
Uncontrolled hypertension (high blood pressure)
Physical inactivity.
Obesity.
Uncontrolled diabetes.
Uncontrolled stress and anger.