Old hearts age backwards: transplanted organs adjust to host’s biological age
Heart transplants are limited by donor availability.Credit: Vsevolod Zviryk/Science Photo Library What happens to organs when they are…
Walking for Just 20 Minutes Caused an Immediate Change in the Gut
A brief, easy walk may trigger a surprisingly rapid response in the digestive system. Researchers found that several…
Scientists Bred “Super-Athlete” Mice for 30 Years – What Happened Was Unexpected
An exceptionally long-running mouse experiment suggests that abundant energy, or hidden physiological adaptations, may allow extreme activity without…
All living things emit a faint glow. Could this light be useful?
In 2025, quantum physicist Daniel Oblak and his colleagues published images of mice that made headlines around the…
How naked mole-rat queens stop rivals reproducing
Naked mole-rat queens produce a chemical that stops other females from reproducing.Credit: Neil Bromhall/Getty Naked mole-rat (Heterocephalus glaber)…
How long-term dietary cholesterol can slow down its own clearance by liver cells
RESEARCH BRIEFINGS 25 June 2026 Cholesterol carried by low-density lipoprotein (LDL) drives heart disease and is cleared by…
Scientists Discover Gut Signal That Turns Off Sugar Cravings
Your gut may be far smarter than scientists realized. Researchers have discovered a hidden gut-brain communication system that…
Exercise Changes the Heart in a Way Researchers Never Expected
Exercise may do far more than strengthen the heart and muscles. New research suggests regular aerobic activity can…
Immune cells have a surprising role in exercise endurance
B cells, an important component of the immune system, might improve endurance and muscle strength.Credit: Hinterhaus Productions/Getty Immune…
The surprising science behind red-light therapy — and how it really works
In 2021, dermatologist David Ozog was on holiday with his family in the Bahamas, when his 18-year-old son…
Exercise rewires the brain — boosting the body’s endurance
Certain neurons in mice become more easily activated after multiple exercise sessions, a study has found.Credit: Dr Gopal…
Illuminating how the bird inner retina works without oxygen solves a 350-year-old structural mystery – Nature
Illuminating how the bird inner retina works without oxygen solves a 350-year-old structural mystery NatureOxygen-free metabolism in the bird…