Sleep-wake rhythms in normal adults usually have a periodicity of 24 hours, while 48-hour sleep-wake cycles have been ...

It's not uncommon for patients to hide their true emotions from their caregivers – or even from their own conscious selves.

Two major studies from Harvard and MIT uncover a surprising link between the immune system and the brain, revealing how ...

Teen Accounts are currently being rolled out across Instagram in India and will extend to Facebook and Messenger later this ...

NEW YORK, - Investors hoping for an end to wild market swings were reminded on Thursday that fallout from U.S. President Donald Trump's shifting tariff plans remains a threat to earnings and the ...

TOKYO -- Eisaku Ito has had an eventful first two weeks on the job as president and chief executive of Japanese industrial conglomerate Mitsubishi Heavy Industries. The global upheaval caused by U ...

We don't want wild swings back and forth in behavior, right? We don't want to see someone behaving erratically. We want to be able to know our money is safely stored with uh our assets ...

NEW YORK (AP) — U.S. stocks jumped Friday in another manic day on Wall Street, while the falling value of the U.S. dollar and other swings in financial markets suggested fear is still high about ...

Research has linked weather and its ever-changing behavior to everything from sexual activity to purchasing decisions to diets, from melancholy to irrational exuberance, from insomnia to mental acuity ...

Steve regularly struggled with mood swings, low confidence and depression that would envelop him in a heavy blanket of inertia. He’d been in therapy in an unsuccessful attempt to get to the ...