Scientists say they have identified the underlying reason why some people are prone to the winter blues, or seasonal affective disorder (SAD).
The project that enabled a paralysed man to walk again
A paralysed man becomes the first in the world to walk again following a pioneering therapy which involved transplanting cells from his nose into his severed spinal cord.
Vital supplies to tackle Ebola are beginning to arrive in Guinea, Liberia and Sierra Leone – the worst-hit countries, Ghana’s president says.
Grant Trebilco started Fluro Fridays on Australia’s Bondi Beach to help fight his own bipolar disorder – now more than 100 surfers join him each week.
Scientists at MIT are working on trying to create “superhuman vision”.
The WHO is expected to declare Nigeria free from Ebola on Monday with no reported cases of the virus for six weeks due to a rapid and thorough response from healthcare professionals.
William Pooley, the British nurse who contracted Ebola while volunteering in West Africa, returns to Sierra Leone to work at a hospital.