Collagen supplements might make your skin more elastic – but the evidence is weak.

From the mysterious white flecks that sometimes appear on nails to unusual ridging or changes in thickness, what do these features really mean?

The locus coeruleus is emerging as a major new area of research interest, with many important functions such as regulating our attention and sleep.

Some communities have developed techniques to help them carry heavier loads. Here's what we can learn from them.

: The old cliché says it's good to stop and smell the roses. If you believe a series of viral videos, you may appreciate them more if you grew up in the US.

Billions of bacteria, fungi and viruses live on the surface of our bodies. We are only just beginning to understand the vital role they play in our health and wellbeing.

Sometimes our bodies react to the world around us before we realise, shaping our emotions.

There is growing evidence that the time of day we exercise makes a difference to our performance and health, but can we train our bodies to peak at different times of the day?