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L-theanine supplements are touted for stress relief, focus and better sleep. Although the evidence so far is preliminary, studies suggest the compound may have several brain benefits ...

A prototype of bifocal eyeglasses uses liquid crystals and electric fields to switch between modes that aid in nearby and distance vision ...

Photographer Nicole Tung captures the tough world facing South-East Asia's fishers and their families in this series of images, which won her the Carmignac Photojournalism Award for fieldwork ...

The Laser Interferometer Gravitational-Wave Observatory (LIGO) uses lasers and mirrors to look for black holes across the universe, and it turns out a Google DeepMind AI could make it even more sensitive ...

About half of people with generalised anxiety disorder don't respond to common treatments with antidepressants - but psychedelics may offer relief ...

Four new species of aquatic birds related to modern penguins have been described from fossils found in New Zealand, showing how these creatures flourished around 60 million years ago ...

Not only is solar more than capable of supplying all the world's energy, in the long term it is the only power source that won't fry the planet ...

People seem to spend longer on the toilet if they use a smartphone while sitting there - and all that scrolling may be boosting their likelihood of getting haemorrhoids ...

An analysis of a range of dry dog foods finds that none are nutritionally complete, but vegan and vegetarian foods compare well with meat-based ones ...

Governments are looking to ban social media for children but can't get enough of AI - a technology parents are far less equipped to deal with ...