Answer:
Bad breath
Fatigue
lower energy
reduction in smell and taste
Explanation:
A 'Trend' is a large social influence if this is what you are talking about. Trends are something where one person does/wears it (usually a popular person everyone likes) and then everyone else starts doing it.
A nephron is the functional unit of the kidney. it is the structure that produces urine which is the process of removing waste and excess substances from the blood. there are about 1,000,000 nephrons in each human kidney.
The answer would be the lungs