Caffeine and anxiety

That extra cup of coffee to get through the day might be doing more to your nervous system than you realise, especially if anxiety is already part of your life.

What it is

Caffeine is a stimulant that increases alertness by affecting the same stress-response systems in the body that anxiety activates - faster heart rate, heightened alertness and a surge of adrenaline-like chemicals. For many people, moderate caffeine is fine. But for those prone to anxiety, caffeine can mimic or intensify symptoms like a racing heart, jitteriness, restlessness and difficulty settling the mind, sometimes making it hard to tell the difference between caffeine effects and anxiety itself.

Signs to notice

• Racing heart, shakiness or restlessness after coffee, tea or energy drinks
• Increased worry or a sense of dread that seems to spike after caffeine
• Difficulty falling asleep or staying asleep on days with later or higher caffeine intake
• Needing more caffeine over time to feel the same effect
• Headaches or irritability when caffeine is skipped, suggesting dependence

What helps

• Track your caffeine intake for a week alongside your anxiety symptoms to spot patterns
• Reduce gradually rather than stopping suddenly, which can cause withdrawal headaches
• Avoid caffeine after early afternoon to protect sleep quality
• Try swapping some cups for decaf, rooibos, or herbal tea
• Notice if you're using caffeine to mask tiredness from poor sleep - addressing sleep may reduce the need for it
• Pair any caffeine with food rather than drinking it on an empty stomach, which can intensify jitteriness

When to reach out for help

If anxiety is frequent, intense, or interfering with daily life regardless of caffeine intake, it's worth speaking to a professional. A doctor can help rule out other causes of symptoms like a racing heart, and a counsellor can help you build tools to manage anxiety more broadly.

Getting help in South Africa

Cleared Mind counsellors can help you understand and manage anxiety, including lifestyle factors like caffeine. Speak to your GP if physical symptoms are persistent or concerning. For general mental health support, contact the SADAG Mental Health Line on 011 234 4837.