Longevity Science in 2026: What Actually Extends Healthy Life — and What Doesn't
The longevity industry is generating billions in supplements, therapies and tests. Here's what the science says actually extends healthy…
Dr. Nadia Okoro
Dr. Nadia Okoro
Science & Health Writer
Dr. Nadia Okoro holds a PhD in molecular biology and writes about medicine, public health and scientific research with an emphasis on evidence.
Credentials: PhD, Molecular Biology
Sleep Science: How Much Sleep Do You Really Need?
Most adults need seven to nine hours of sleep, but quality and consistency matter as much as quantity. Here is what the evidence says, and…
Dr. Nadia Okoro
The James Webb Space Telescope: What It Has Taught Us About the Universe
Since it began observing in 2022, the James Webb Space Telescope has reshaped our view of the early universe, distant galaxies and the…
Dr. Nadia Okoro
The Mediterranean Diet: What the Evidence Actually Says
The Mediterranean diet is one of the most studied eating patterns in the world. Here is what it includes, what the research shows about its…
Dr. Nadia Okoro
The Science of Stress and How to Manage It
Stress is a survival response that becomes harmful when it never switches off. Here is how the fight-or-flight system and cortisol work…
Dr. Nadia Okoro
The Water Cycle: How Earth Recycles Its Water
The water cycle is the constant journey of water between the oceans, the air, and the land through evaporation, condensation…
Dr. Nadia Okoro
What Is Dark Matter? The Universe's Missing Mass
Dark matter is an invisible form of mass that appears to outweigh ordinary matter several times over. We infer it from gravity, yet it has…
Dr. Nadia Okoro
Understanding Cholesterol: HDL, LDL and What to Do
Cholesterol is not simply 'bad.' Your body needs it - but the balance between LDL and HDL matters for heart health. Here is what the…
Dr. Nadia Okoro
CRISPR Gene Editing Explained
CRISPR is a precise gene-editing tool that uses a guide molecule to lead molecular scissors to an exact spot in DNA. Here is how it works…
Dr. Nadia Okoro