Scientific American is the essential guide to the most awe-inspiring advances in science and technology, explaining how they change our understanding of the world and shape our lives.

Australians will soon find it much smoother to be diagnosed and treated for attention deficit hyperactivity disorder.

Finding the right pillow is a deeply personal choice. There's no one-size-fits-all best pillow — instead, the right pillow for you depends on your sleeping position and comfort preferences. Generally, ...