Canopy Growth announced the departure of its co-CEO Wednesday in a surprise leadership shakeup at the world's largest legal cannabis company.

U.S. biopharmacy company AbbVie said on Tuesday it had agreed to buy Allergan, the maker of Botox, in a stock and cash operation worth about $63 billion.

A Bangladeshi known as the "Tree Man" because of bark-like growths on his body said Monday he wanted his hands amputated to relieve him of unbearable pain.

France's highest appeals court will on Monday begin considering whether a man who has been in a vegetative state for a decade should have been put back on life support -- the latest chapter in a wrenching right-do-die case that has divided the country.

The U.N. Security Council approved Thursday its first resolution calling for protection of disabled people during armed conflicts.

The appeal follows moving testimony in April from Nujeen Mustafa, a young Syrian with cerebral palsy, who trekked with a wheelchair from her homeland all the way to Germany as a refugee. She urged the council to focus more on Syria's "invisible" disabled people.

Scientists said Thursday they had found the earliest signs of Parkinson's disease in the brain years before patients show any symptoms, a discovery that could eventually lead to better screening for at-risk people.

France has the lowest levels of trust in vaccines globally, according to the world's biggest survey on public attitudes toward health and science, which was published on Wednesday.

Terminally ill Australians can for the first time apply to end their own life, after new laws went into effect in the state of Victoria Wednesday.  

Angry protests erupted in one of India's poorest states Tuesday over the deaths of more than 100 children from a mysterious brain fever potentially linked to lychees.

The Indian state of Bihar grappled Monday with twin crises, with a brain virus potentially linked to lychees killing almost 100 children and extreme heat leaving 78 people dead.