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biology

Genetic Circuits: Cells as Computers

Genetic Circuits: Cells as Computers

Cells already run genetic programs. Synthetic biologists are learning to rewrite them — building AND gates, memory switches, and feedback oscillators from DNA. The cell isn't just a machine; it's a computer waiting to be reprogrammed.

Fecal Transplants: The Surprisingly Effective Medicine You Don't Want to Think About

Fecal Transplants: The Surprisingly Effective Medicine You Don't Want to Think About

Fecal microbiota transplants sound wrong until you see the data: they cure recurrent C. difficile infections with ~90% efficacy where antibiotics repeatedly fail. The treatment is gross; the science is solid.

Your Second Brain Lives in Your Gut (And It's Been Talking to Your First One All Along)

Your Second Brain Lives in Your Gut (And It's Been Talking to Your First One All Along)

Your gut has its own nervous system — 500 million neurons that have been in constant dialogue with your brain since before you were born. The gut-brain axis isn't a metaphor; it's a two-way highway.

You're Outnumbered: The Bacteria Running Your Body

You're Outnumbered: The Bacteria Running Your Body

The human microbiome isn't a stable ecosystem — it's a dynamic negotiation between hundreds of species and your immune system. What tips that balance toward health or disease is one of the most active areas in current biology.

The Microbiome Revolution

The Microbiome Revolution

For most of medicine's history, microbes were the enemy. Then researchers found trillions of them living inside healthy people — doing essential jobs. The microbiome revolution is rewriting what it means to be human.

Probiotics: What Actually Works (And What's Expensive Yogurt)

Probiotics: What Actually Works (And What's Expensive Yogurt)

The probiotic industry is worth $60 billion. The clinical evidence supporting most of it is surprisingly thin. Some strains work for specific conditions; most are expensive placebo. Here's how to tell the difference.

Skin, Mouth, and Beyond: The Other Microbiomes

Skin, Mouth, and Beyond: The Other Microbiomes

The gut microbiome is famous, but your skin hosts 1,000+ bacterial species, your mouth harbors 700, and your lungs — once thought sterile — have their own ecosystem. Each one plays a distinct role in health and disease.