Hormones coordinate different body functions by carrying messages through the bloodstream to target cells and tissues. Hormonal imbalances occur through inadequate or excess hormone synthesis, which ...

For decades, depression has been explained to patients as a “chemical imbalance” in the brain, a vague phrase that never ...

Just as the human body relies on organs such as the heart or liver for essential functions, cells depend on their own tiny ...

Understanding the human cell is vital to progress in the life sciences and to human health. Cells are the smallest, most basic unit of life responsible for all of life’s processes. A typical human ...

Researchers at the Francis Crick Institute and AlveoliX have developed the first human 'lung-on-chip' model using stem cells taken from only one person. These chips simulate breathing motions and lung ...

If scientists could shrink themselves to microscopic size and take a journey through the human body—like the submarine crew in the 1966 science fiction classic "Fantastic Voyage"—one of their first ...

The immune system acts as a critical sentinel of organismal aging, integrating the sensing of physiological states with the execution of defense and clearance functions. Immunosenescence not only ...

Researchers from University of California San Diego Sanford Stem Cell Institute have discovered that spaceflight accelerates the aging of human hematopoietic stem and progenitor cells (HSPCs), which ...