Some women are concerned about how contraceptive pills could be affecting their mental health. Are these fears backed up by evidence?

We use them to clean the dishes we eat off, but your kitchen sponge is a damp, crumb-filled environment that is perfect for bacteria to thrive in. Is a washing up brush better?

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

Pathfinder 1, bankrolled by a Google billionaire, is an attempt to revive the airship. A century after terrifying disasters, is it a safe-enough bet?

Solitary lifestyles can have some big advantages in the animal world. Can humans learn anything from them?

From raw eggs to protein shakes, those hoping to expand their brawn are often encouraged to ingest vast quantities of protein. But how much is really necessary?

Suggesting that natural products or ingredients are inherently superior to those that are synthetic is a common flaw in reasoning used by brands and politicians alike.

The British naturalist embarked on an extraordinary journey, did hundreds of experiments, and wrote for 20 years.