How much caffeine is too much — and when does it become unsafe?

Caffeine is a central nervous system stimulant found in coffee, tea, energy drinks, and supplements. In this episode, we explain safe daily limits, how caffeine affects the heart and brain, and when medical advice may be needed in Europe.

You’ll learn:

• Recommended maximum daily caffeine intake for healthy adults (generally up to 400 mg/day)

• Lower safety thresholds during pregnancy and for adolescents

• Symptoms of excessive caffeine intake: palpitations, anxiety, insomnia, tremor, gastrointestinal upset

• How caffeine affects blood pressure, heart rhythm, and sleep architecture

• Risks of high-dose caffeine powders or energy drinks

• When symptoms such as persistent tachycardia, chest pain, or severe agitation r ...