You drank too much coffee
“We think nothing of that extra cup of coffee, but caffeine makes the body nervous and jittery, and triggers the fight or flight response,” explains Nikki Martinez, PsyD. Overdoing it on the lattés and espressos has been shown to produce symptoms that are indistinguishable from anxiety disorder, according to a study from the British Journal of Psychiatry. (Related: These other signs can reveal whether you’re drinking too much coffee.)
A pounding headache and nausea aren’t the only after-effects of drinking too much. Excess alcohol is one of the main triggers of anxiety, according to research from University of North Carolina School of Medicine, as heavy drinking can rewire the brain and make you more susceptible to anxiety disorders. Alcohol is also known to disrupt your sleep, and sleep deprivation can boost your anxiety levels, according to research from UC Berkeley. Check out these simple tips for cutting back on the booze.