LecturerGood afternoon. Today we look at stress — a feeling that, in small amounts, is actually completely normal and even useful.
LecturerStress begins in the brain, which reacts to a threat by releasing a hormone called adrenaline.
LecturerThis is the body's so-called fight-or-flight response, preparing you to act quickly in an emergency.
LecturerIn the short term, your heart beats faster and your breathing speeds up — neither of which is harmful at all.
LecturerThe real difficulty comes when stress becomes long-term, or chronic, and the body never gets the chance to switch off.
LecturerOne of the earliest warning signs of chronic stress is poor sleep, often weeks before anything else appears.
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