An explanation of the Genetic Code: DNA is a two-stranded molecule. Each strand is a polynucleotide composed of A (adenosine), T (thymidine), C (cytidine), and G (guanosine) residues polymerized by dehydration synthesis in linear chains with specific sequences.
SIDE EFFECTS. Common adverse reactions to systemically administered epinephrine include anxiety, apprehensiveness, restlessness, tremor, weakness, dizziness, sweating, palpitations, pallor, nausea and vomiting, headache, and respiratory difficulties.
When you first inhale, nicotine causes your body to release the hormone epinephrine, which is the fight or flight hormone. Epinephrine activates the sympathetic nervous system, making your breathing become rapid and shallow, your heart rate increase, and your blood pressure rise. You're alert.