Stress.
Explanation:
Stress can cause aging, grey hair, weight gain and more. Therefor the stress going on in your mind is affecting your body
Make you lose weight idk if that's what your looking for tho
True! You can make sure you dont feel alone, while also maintaining relationships
D because trachea is the tube, bronchi is what splits into your lungs, bronchioles are what look like branches of the bronchi, and alveoli are the little air bags at the bottom of the smallest bronchioles.
