Here's why you might feel sick after a workout – and what you can do to prevent it

By Adam Taylor, Professor and Director of the Clinical Anatomy Learning Centre, Lancaster University

Many of us exercise to feel better. While some of us get “runners’ highs” after a workout, unfortunately some of us leave the gym feeling nauseous. Though this is usually only temporary, it can still be uncomfortable. Fortunately there are a few good explanations for why this may be happening – so if this happens to you there’s probably no reason to be alarmed.

When we exercise, there’s an increase in blood flow to the working muscles, brain, lungs and heart. This increase in blood flow is driven by the sympathetic part of the autonomic nervous system (which helps regulates all of our…

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