What does it really mean when we talk about stress? Clinical Physiologist Lead, Marcus Herbert, explains what's going on inside your body and your brain when stress strikes.

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If you suspect you or someone you know may be experiencing an episode of poor mental health, we recommend speaking to a GP or mental health professional. If you or a loved one need help for a mental health emergency, seek immediate expert advice.

If you or someone you know is at immediate risk or harm, call 999 and ask for an ambulance or visit your nearest Accident and Emergency department.

You can find a local and urgent NHS mental health helpline in England here: https://www.nhs.uk/service-search/men...

For urgent support, you can speak with Samaritans 24 hours a day, 365 days a year here: https://www.samaritans.org/

To call Samaritans, ring the freephone number 116 123.

For more information, you can find a UK list of helplines put together by the Helplines Partnership here: www.helplines.org/helplines.