What does fear do to your body?

Fear ignites the body’s flight or fight reaction in the nervous system, which sends the hormone cortisol coursing through the body. On a physiological level, this surge of hormone results in increased heart and breathing rates, tense muscles as blood flow is diverted from our digestive system to our brains, and often dizziness, nausea and diarrhoea as our body goes into overdrive mode. Increased levels of anxiety have been linked to a higher incidence of depression, insomnia, migraines and IBS.