Biolume Health Team

It turns out your immune cells know what time it is. Literally.

A new study published in Science Immunology has uncovered something remarkable: your first line of immune defense — the neutrophils that gobble up invading bacteria — work more effectively during daylight hours. Why? Because they’re running on circadian time.

Let’s break it down.

Most of us know about the circadian rhythm in the context of sleep. Stay up too late, miss the morning light, or do shift work long enough, and your internal clock starts to drift — a phenomenon researchers call “social jet lag.” But the impact goes far beyond fatigue or grogginess.

Disruption of your circadian rhythm doesn’t just mess with your mood. It affects your immune function too. And this new research helps explain why.

Immune Cells, But Make It Chronobiological

Led by immunologist Chris Hall at the University of Auckland, the study used transparent larval zebrafish — a surprisingly powerful model due to their similarity to human immune

It’s blue. It’s everywhere online. And it’s being talked about as the next big thing for brain health.

We’re talking about methylene blue — a synthetic dye with a long medical history that’s now showing up in wellness circles as a brain-enhancing supplement. Touted for sharpening focus, boosting memory, and clearing brain fog, methylene blue has caught the attention of health influencers and biohackers alike. But does the science actually back it?

Let’s unpack what this compound is, how it works, and what the evidence says — and doesn’t say — about its cognitive claims.

A Dye With Medical Roots

Methylene blue isn’t new. It was first created in 1876 as a textile dye. Its bright, vivid colour made it ideal for staining tissues under the microscope — and by the late 1800s, it was being tested as an anti-malarial drug.

Its superpower lies in its chemistry. Methylene blue can swap electrons with other molecules, like a mini battery. That makes it useful in medicine — especially for treating

Supplements: The Untold Risks Behind the Wellness Hype

For years, supplements have enjoyed an almost sacred status in the wellness world. Seen as safe, natural, and a smarter alternative to pharmaceuticals, they’re sold in supermarkets, pharmacies, influencer feeds, and health food stores across Australia.

But what happens when “natural” isn’t harmless?

Liver failure, toxicity, and the supplement blind spot

A growing body of international research is highlighting what Australian regulators and consumers have been slow to confront: supplements are not risk-free. A 2022 study in Liver Transplantation found that supplement-related liver failure in the U.S. had increased eightfold over 25 years. In Australia, adverse reactions to complementary medicines—including liver damage, kidney stress, and drug interactions—have quietly made their way into hospital admissions and TGA adverse event reports.

The TGA receives hundreds of reports of supplement-linked side effects each year. These range

The concept of “biological age” has officially entered the mainstream.

From podcasts to TikTok to wellness newsletters, everyone seems to be talking about how old they really are — not by the number of birthdays they've celebrated, but by what’s happening inside their cells. Biological age testing promises to reveal how well you're ageing, whether your efforts to eat better, sleep more, or reduce stress are “working,” and whether you're adding years to your life — or life to your years.

And the appeal is obvious. In a world that’s increasingly focused on prevention and performance, the idea of quantifying your ageing process is both empowering and seductive. A simple test, a bold number, and the reassurance (or wake-up call) that you’re either thriving or falling behind.

But here’s the thing: while the science behind biological age is fascinating, these tests might not be telling you what you really need to know.

What Is Biological Age — and Can It Be Measured?

Biological age