Pushing harder isn’t always better—especially when your goal is to feel good, not just perform.

We all grow older. There is nothing we can do about that, but the quality of those years is within our control, as recent research has shown. After receiving a doctor’s approval to begin any exercise ...

As women enter their 40s and beyond, hormonal changes can make it harder to build muscle, maintain energy, and manage body composition. High-intensity training is one of the most powerful tools for ...

Share on Pinterest An Australian study suggests that HIIT exercises could be optimal for body composition in older age. Image credit: rbkomar/Getty Images A study suggests high-intensity interval ...

Researchers from the University of Southern Denmark investigated how eight weeks of high-intensity interval training affect the structure of mitochondria—the parts of muscle cells that produce energy.