Category: Live Science

Can't Exercise For 30 Minutes Today? Any Activity Is Better Than None

Health officials recommend that people get 150 minutes of moderate exercise per week, but some researchers argue that this recommendation may set the bar too high for some people, and that guidelines should instead focus on getting people to be just a little bit more active. The World Health Organization says that people are sufficiently active if they get at […]

Magnets Make People Think Of Love, Study Finds

Animal magnetism may be a more literal concept than it's given credit for, according to a new study that finds that people are more attracted to their romantic partners after playing with magnets. The research is an example of a social priming effect, an old idea in psychology that has recently become more controversial. The idea holds that when people […]

Why Does Ice Cream Cause Brain Freeze?

It’s summertime. It’s hot outside. You’re hot. Cooling off with an icy indulgence seems like a great idea. But as you stuff that frozen yogurt down your gullet something decidedly unpleasant happens: the dreaded “ice-cream headache.” Why is it that slurping slushies, gobbling gelato, or inhaling Italian ice can cause such wicked, intense bursts of head pain? A surprising number […]

Brand Loyalty Is Declining Among Shoppers

By analyzing consumers' shopping patterns, new research is indicating brand loyalty is on the decline, as a preference for favorite brands is replaced by a preference for lower price. Computer scientist Rajeev Sharma and colleagues have started a company, called VideoMining, around some new software they've developed to analyze these kinds of shopping trends. They use the software to put […]

One Size Fits Few: Artificial Hearts Leave Many Out (op-ed)

Dr. Mario Deng, professor of medicine and medical director of the Advanced Heart Failure, Mechanical Support and Heart Transplant program at the University of California, Los Angeles (UCLA), contributed this essay to Live Science's Expert Voices: Op-Ed & Insights. When Nemah Kahala, a wife and mother of five, arrived at Ronald Reagan UCLA Medical Center as one of our patients […]

Déjà Vu All Over Again: This Man Relived Every New Moment

Trapped in a time loop: That's how one man felt because of his recurring déjà vu episodes. Unlike the vague, fleeting sensation most people experience in déjà vu, his episodes were persistent and long. The 23-year-old British man started to have "frightening" episodes of déjà vu shortly after starting college, said the researchers who detailed his unusual case in a […]

Is Space Full Of Quantum Foam?

Look at space under a microscope and what do you see? Nothing. Magnify 1,000 times. Nothing. Magnify 1,000,000 times. Still nothing. Magnify 1,000,000,000 times. Absolutely nothing. At this point, the average person would probably be satisfied with the conclusion that space is, in fact, nothing. This makes intuitive sense, after all, and besides, we're already far beyond the magnification power […]

Video Captures Surprise Squid Attack — On Another Squid

A marine expedition exploring life in the deep sea near Australia recently captured footage of an incredible scene: a squid's sneak attack on a smaller squid. The two animals appeared on camera seemingly out of nowhere during the ship's video observation of a baited line. A squid that swiftly swam into the frame and grasped a piece of bait quickly […]

Could Pumping Aerosols Into The Atmosphere Stop Global Warming?

Heat waves. Drought. Storms. The extreme weather that has battered much of the planet in the past few years, up through the heat wave cooking most of the United States this summer, has more scientists thinking about extreme solutions to the climate crisis. Geoengineering – making large-scale changes to the environment – is no longer fringe science, with the debate […]