I believe the answer is asthma considering it is not as dangerous as the other consequences
Epinephrine is the answer you're looking for. A more common and more used terms would be adrenaline.
Yes, it can cause many physical health issues
A few things can include taking a hot shower before bed, make sure you've completed everything you needed to do for the day, and go to bed on the right time, a bad habit would probably be staying up late to watch a movie or something
SHORT TERM
1. Cardiovascular; "Increase in stroke volume (SV); increase in heart rate (HR); increase in cardiac output (Q); increase in blood pressure (BP); redistribution of blood flow"
2. Energy; "Increase in lactic acid (lactate) production"
LONG TERM
1. Muscular; "Muscle hypertrophy; increased strength of tendons; increased strength of ligaments"
2. Skeletal; "Increase in bone density"
IMMEDIATE
1. Increased heart rate
2. Sweating
