+ who gets to retire ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌

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As far as bodily fluids go, snot is not one we tend to spend a lot of time thinking about — until we’re sick, of course. The next time you’re ill, I challenge you to take a moment to consider your snot more carefully. Have a glance into your tissue and marvel at what you find there.

Snot is actually a fantastic outward expression of the inner, microscopic battles that rage inside of us everyday. The varied colours our mucus comes in can give us hints and clues about what’s going on — and whether it might be time to go to the doctor.

While most of us eagerly look forward to what we’ll do with all our free time during our retirement, recent research has found that almost 10% of people eligible to retire are still working. But the reasons why people continue to work past retirement age are hardly straightforward – your occupation, gender, ethnicity, health, marital status and where you live can all play a role, as this article explores.

If you’ve ever struggled to complete a Captcha puzzle designed to prove to a website that you’re a human and not a bot, then you’ll be disheartened to know that the bots are now smart enough to solve them. And they’re only going to get smarter as AI develops.

Heather Kroeker

Commissioning Editor, Health

Clear snot is usually the baseline. Dmitrii Pridannikov/ Shutterstock

What the colour of your snot says about your immune health

Samuel J. White, York St John University; Philippe B. Wilson, York St John University

Mucus isn’t merely a symptom of illness – it’s your immune system in action.

fizkes/Shutterstock

Who chooses to work, and who is forced to, after retirement?

Takao Maruyama, University of Bradford; Vincent Charles, Queen's University Belfast

Our research explains which groups are still working beyond retirement age, and why.

‘Let’s try for a third time.’ Gago Design

‘Yes, I am a human’: bot detection is no longer working – and just wait until AI agents come along

Irfan Mehmood, University of Bradford; Kamran Mahroof, University of Bradford

Designed in the early 2000s to stop rogue bots, we could at least justify the infuriation when they did their job properly.

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