The "100 kettlebell swings a day" challenge is the latest viral fitness endeavor on social media. Here’s a few reasons why it ...

The area between your toes is packed with sweat glands, and when we wrap our feet in socks and shoes, we trap that moisture in a warm, humid cocoon that’s ideal for microbial growth.

Antarctic leopard seals sing complex underwater songs with patterns comparable to nursery rhymes, new research reveals.