LONDON, March 20: Smoking high-potency marijuana every day could increase the chances of developing psychosis by nearly five times, according to the biggest-ever study to examine the impact of pot on psychotic disorder rates

Activision announced a new Call of Duty entry today, but it isn't for the annual high-profile series. Call of Duty: Mobile is an Android and iOS exclusive free-to-play shooter that will feature content from the Modern Warfare and Black Ops games of the past.

A Russian cosmonaut and two US astronauts arrived Friday at the International Space Station aboard a Russian Soyuz spacecraft, five months after the failed launch of a rocket carrying two of the passengers. NASA astronaut Nick Hague and his Russian colleague Alexey Ovchinin, who both survived a dramatically aborted Soyuz launch last year, were joined on the smoothly-executed trip by NASA astronaut Christina Koch.

WASHINGTON, March 17: A huge study suggests the Apple Watch can detect a worrisome irregular heartbeat at least sometimes — but experts say more work is needed to tell if using wearable technology to screen for heart problems really helps.

March 16: Shares of Facebook Inc fell as much as 5 percent on Friday to their lowest in nearly three months after the surprise departure of Chief Product Officer Chris Cox, at a time when the company is again being scrutinized over its handling of privacy, extremism and political content.

One of YouTube’s biggest celebrities found himself entangled early Friday in news coverage of the mass shooting at two mosques in New Zealand.

CAIRO, March 16: Californian group Red Hot Chili Peppers played in front of Egypt’s great pyramids of Giza on Friday, entertaining more than 10,000 people at the site and many more over a livestream link.

SEOUL, March 14: After their stunning retirement announcements, two K-pop stars including a member of the superstars Big Bang are facing police questioning over a series of interlocking scandals that have roiled South Korea for weeks.

A compelling new study, published in the journal Ophthalmology Retina, has reported that statistically significant differences can be identified in the retinas of patients with Alzheimer's disease. The finding paves the way for a future where the disease could be diagnosed from a simple eye scan before major symptoms appear.

Smoking even one cigarette a day during pregnancy can double the chance of sudden unexpected death for your baby, according to a new study analyzing over 20 million births, including over 19,000 unexpected infant deaths.