02/21/2026
Did you go on today’s Coffee Crawl in Bismarck-Mandan? I love coffee and love supporting local! It was so fun checking out all 9 places. If you went, what was your favorite?
As I was drinking each one, I was thinking about caffeine and how much this will affect me today. Here’s some thoughts:
☕ Caffeine: Friend, Foe, or Both? A Psychologist’s Take
Caffeine is the most widely used psychoactive substance in the world. Yes — psychoactive. It changes how your brain functions.
Like most things in mental health, it’s not “good” or “bad.” It’s contextual.
✅ Potential Benefits
• Increased alertness and focus
• Improved reaction time
• Temporary mood boost
• May enhance cognitive performance in sleep-deprived states
• Can improve physical endurance
For many people, moderate caffeine use (up to ~400 mg/day for most adults) is well tolerated.
But.
⚠️ The Less Discussed Side
Caffeine stimulates the central nervous system. That means it activates the same physiological arousal system involved in anxiety.
Higher doses can cause:
• Restlessness
• Racing heart
• GI distress
• Irritability
• Sleep disruption
• Increased anxiety
• Jitteriness or tremor
In vulnerable individuals (especially those with panic disorder, health anxiety, ADHD, trauma histories, or sleep disorders), caffeine can amplify symptoms.
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📖 Yes, There Is a DSM Diagnosis: Caffeine Intoxication
According to the DSM-5-TR, Caffeine Intoxication is diagnosed when:
• Recent caffeine consumption (typically >250 mg)
• 5 or more of the following:
• Restlessness
• Nervousness
• Excitement
• Insomnia
• Flushed face
• Diuresis
• GI disturbance
• Muscle twitching
• Rambling speech
• Tachycardia or cardiac arrhythmia
• Periods of inexhaustibility
• Psychomotor agitation
And the symptoms cause significant distress or impairment.
Most people won’t meet criteria. But many experience subclinical effects that look a lot like anxiety.
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🧠 Things I Often Explore Clinically:
• Is caffeine masking burnout or sleep deprivation?
• Is it worsening anxiety that someone thinks is “just how I am”?
• Is afternoon caffeine contributing to nighttime rumination?
• Is someone self-medicating ADHD symptoms without realizing it?
Sometimes reducing caffeine dramatically improves mood stability and anxiety.
Sometimes it’s not the main driver at all.
Context matters. Nervous systems differ.
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Bottom line:
If you struggle with anxiety, insomnia, irritability, palpitations, or panic symptoms — caffeine is always worth assessing.
Not eliminating automatically.
But evaluating thoughtfully.
Your nervous system deserves that level of curiosity.
☕🧠