Gay men at high risk of contracting HIV should have access to a daily dose of a drug used to treat the AIDS-causing virus, but as a preventive measure, researchers recommended Thursday.

The medicine, sold under the brand name Truvada, proved almost 90 percent effective at protecting men taking part in a British study, they wrote in The Lancet medical journal. 

Boys with a low resting heart rate in their late teens run a higher risk of turning to a life of violent crime when grown, a study out Wednesday suggests.

The findings could lead to improved ways to stop certain people from indulging in crime before it is too late.

California is set to become the sixth American state to approve euthanasia, a controversial issue in the United States fueled by the recent suicide of a woman suffering from terminal cancer.

"This is a historic step forward for Californians with terminal illnesses who have been looking to the legislature for the option to determine the quality of their final days of life based on their own personal beliefs," said Senator Bill Monning, one of the backers of the bill approved by the state assembly on Wednesday.

The Philippines has suspended macaque exports after an Ebola virus strain that is non-fatal to humans struck 20 monkeys, killing 11, officials said Thursday.

Eleven captive Philippine macaques have died after contracting the bat-borne Ebola Reston virus while nine others are under treatment, they said.

An eight-year-old girl who endures 400 daily epileptic seizures will become Mexico's first authorized consumer of medical cannabis after the government granted her Tuesday an exemption to its marijuana ban.

The health ministry announced in a statement that it would facilitate the paperwork needed to import a cannabis oil that is believed to alleviate epileptic fits.

Three institutions that work together to fight blindness and poverty in Africa are sharing a 1 million euro ($1.1 million) prize from a Portuguese foundation.

The award announced Monday night is being given to the Tanzania-based Kilimanjaro Center for Community Ophthamology, the U.S.-based Seva Foundation and Seva Canada.

If things are a bit tense in your doctor's office come Oct. 1, some behind-the-scenes red tape could be to blame.

That's the day when the nation's physicians and hospitals must start using a massive new coding system to describe your visit on insurance claims so they get paid.

Another woman has tested positive for Ebola in a village in northern Sierra Leone already under quarantine after the death of a 67-year-old woman a week ago, President Ernest Bai Koroma said on Sunday.

Koroma said the new case, confirmed on Saturday, had been in contact with the woman who died on August 28 in the village of Sellu Kafta in Kambia district.

As it gets harder to tear our eyes away from smartphones, televisions, tablets or computers, concerns are growing over a blue light emitted by their screens, blamed for harming the retina and causing interrupted sleep.

Electronics giants are turning crisis to an opportunity -- quickly declaring that their latest products feature "safe" screens.

Several monkeys at a research and breeding facility in the Philippines have been infected with an Ebola virus strain that is non-lethal to humans, health officials said Saturday.

The facility's 25 workers have been tested for possible infection but all have been found negative for the Ebola Reston variety, said Health Secretary Janette Garin.