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Jack Janetzki

Jack Janetzki

The Conversation

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There’s one reason why so many cold and flu tablets don’t actually work

There’s one reason why so many cold and flu tablets don’t actually work

The most common active ingredient in cold and flu tablets has been shown to have almost no effect. So why do some people feel these tablets help?

tuesday 10

The Conversation

Jack Janetzki

Should I take zinc or eat oysters to ward off colds, boost my immune system or improve fertility?

The marketing hype promises better health for men, fewer colds and a more robust immune system. Here’s what the evidence says.

29.06.2026 10

The Conversation

Jack Janetzki

As the Iran war disrupts supplies, will it affect access to medicines?

Here’s what’s in place to protect supplies in the short term, and the risks of long-term instability.

02.04.2026 20

The Conversation

Jack Janetzki

Planning a ‘Euro summer’ or cruise? Why another flu shot might save your holiday

Here’s what updated advice about flu vaccines means for you and your holiday plans.

10.07.2025 20

The Conversation

Jack Janetzki

Can’t fill your ADHD script? Here’s why, and what to do while the shortage persists

Some people have to call around pharmacies to get their script filled, others change to different medications. And the shortage is expected to...

09.07.2025 10

The Conversation

Jack Janetzki