Caffeine Effects: Withdrawal, Sleep & Health Impact

Caffeine impacts everything from sleep quality to concentration and heart rate. Learn how long withdrawal takes, the diuretic effects on the body, and the potential risks of taking caffeine tablets with medication or alcohol.

Does Caffeine Affect Dopamine Levels?

Published Jul,08 2011 | By Ashley Miller

If you've ever wondered why you usually feel better after drinking a cup of coffee, the answer might surprise you. Caffeine increases your brain's production of one of the "feel-good" neurotransmitters known as dopamine. Among its other functions, dopamine is well-known for its pleasure-enhancing properties.

Ashley Miller is a licensed social worker, psychotherapist, certified Reiki practitioner, yoga enthusiast and aromatherapist. She has also worked as an employee assistance program counselor and a substance-abuse professional. Miller holds a Master of Social Work and has extensive training in mental health diagnosis, as well as child and adolescent psychotherapy. She also has a bachelor's degree in music.