Level 0: No jitters
Coffee contains caffeine, which acts as a stimulant on your central nervous system. It blocks adenosine, a chemical that makes you feel sleepy, leading to increased activity of neurotransmitters like dopamine and norepinephrine.
Caffeine dosage (FDA suggests up to 400 mg/day is safe for healthy adults)
Individual sensitivity to caffeine
Genetic factors (e.g., variations in the ADORA2A gene)
Tolerance level from regular consumption
Pre-existing health conditions (e.g., anxiety disorders)
Reduce caffeine intake, especially if consuming over 300 mg at once
Stay hydrated, as dehydration can worsen symptoms
Consider genetic testing for caffeine sensitivity
Gradually decrease caffeine consumption to build tolerance
Try decaf or herbal alternatives if jitters persist