New research suggests poor sleep may increase people's risk of Alzheimer's disease, by spurring a brain-clogging gunk that in turn further interrupts shut-eye.

Disrupted sleep may be one of the missing pieces in explaining how a hallmark of Alzheimer's, a sticky protein called beta-amyloid, starts its damage long before people have trouble with memory, researchers reported Monday at the Alzheimer's Association International Conference.

Smartphone sales may be slowing for some tech companies, but not for Apple.

Analysts expect another powerhouse performance from the California tech giant when it reports quarterly financial results Tuesday. Apple's signature iPhones remain popular, even as other smartphone makers are seeing demand slow down.

Automakers and researchers say a new simulated city at the University of Michigan could help speed the development of driver-less and connected cars.

The 32-acre site on the university's campus officially opened Monday. The $10 million testing ground will be run by the Mobility Transformation Center, a partnership between the university, state and federal governments and auto and technology companies.

On a hilltop lookout near Israel's border with Lebanon, U.S. Defense Secretary Ash Carter offered personal assurances Monday that the U.S. will help Israel counter Iranian support for Hizbullah. He called it one example of how the U.S. can support the Jewish state in the aftermath of the Iran nuclear deal.

Carter visited Hussein Lookout, with a sweeping view of the border as well as the Golan Heights, in an effort to emphasize U.S. concern about a range of threats that face Israel. These include tens of thousands of short-, medium- and longer-range Hizbullah rockets and missiles in southern Lebanon that could hit Israeli villages and cities.

Jon Stewart enters the home stretch of his 16 years on Comedy Central's "The Daily Show" on Monday, with 12 more nights of jokes at the expense of those who make and report the news before he signs off for good on August 6.

Stewart's exit, the latest in a year of upheaval in late-night television, will be felt most acutely over the next 15 months as the U.S. approaches its first presidential election since 1996 without his comic take.

Artur Bilsky's Institute of Thermophysics recently sought to buy equipment from a Japanese company that was a routine purchase a few years ago. The request was turned down "categorically," said Bilsky, a researcher at the institute.

Hundreds of other Russian scientists are reporting similar experiences of being refused sale of scientific equipment from abroad, or seeing research papers curtly turned down by Western publications. The reason, they believe, is a combination of sanctions against Russia over its actions in Ukraine and rising hostility to Russia in the West seeping into the scientific community.

The National Air and Space Museum is launching a crowdfunding campaign to conserve the spacesuit Neil Armstrong wore on the moon.

The campaign begins Monday, marking 46 years since Armstrong's moonwalk in 1969. Conservators say spacesuits were built for short-term use with materials that break down over time.

Four people have been detained in connection with a sex video purportedly taken inside a Uniqlo fitting room that spread rapidly online, Beijing police said.

They were detained on suspicion of spreading obscene content, according to a police statement late Sunday. Police said they were still investigating the couple who can be seen in the cellphone video apparently having sex in the Japanese retailer's flagship Beijing store.

Knocked off his board by an attacking shark, three-time world champion Mick Fanning punched the creature before escaping unharmed during the televised finals of a world surfing competition in South Africa on Sunday.

The Australian surfer was struck by the shark from behind and knocked into the water as he sat on his board waiting his turn during the JBay Open in Jeffrey's Bay in the Eastern Cape Province.

Prince Ali bin al-Hussein wants Sepp Blatter to leave now as FIFA president, and let a leader from outside the sport oversee the next election and reforms of soccer's scandal-scarred governing body.

The former FIFA presidential candidate urged the executive committee, which meets later Monday, not to rush into an early election date.