Eighty percent of Americans get a daily jolt from caffeine, and now, as marijuana legalization has spread across the nation
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Stoned Plus Buzzed: Mixing Caffeine and Pot Brings New Risks
What Is a Scientific Theory?
A scientific theory is based on careful examination of facts. It is much different from the non-scientific use of the word.
What Is a Law in Science?
In science, a law describes an observed phenomenon.
Football judgments and driving too fast: The science of judging speed
Football officials watching slow-motion clips or drivers changing from motorways to 30 mph zones could be unconsciously misjudging speed -- and the motivations behind a person's movements -- because their perceptions of 'normal' have been altered by recent experiences, new research has found.
Dementia: BACE inhibitor improves brain function
The protein amyloid beta is believed to be the major cause of Alzheimer's disease. Substances that reduce the production of amyloid beta, such as BACE inhibitors, are therefore promising candidates for new drug treatments. Scientists have recently demonstrated that one such BACE inhibitor reduces the amount of amyloid beta in the brain. By doing so, it can restore the normal function of nerve cells and significantly improve memory performance.
Green tea ingredient may ameliorate memory impairment, brain insulin resistance, and obesity
A new study involving mice, suggests that EGCG (epigallocatechin-3-gallate), the most abundant catechin and biologically active component in green tea, could alleviate high-fat and high-fructose (HFFD)-induced insulin resistance and cognitive impairment.
One of the first examples of a local nautical map from Hispanic America
In the last third of the 16th century, the Spanish crown set in motion a project to obtain a complete map of the New World. The method thought up for this was to use surveys, known as Relaciones Geográficas. A questionnaire with more than 50 questions was sent to each settlement. These also had to be completed with a map of the local region.
'Omnipresent' effects of human impact on England's landscape revealed
The Anthropocene has transformed England, outline researchers in a new report. The Anthropocene -- the concept that humans have so transformed geological processes at Earth's surface that we are living in a new epoch -- was formulated by Nobel Laureate Paul Crutzen in 2000.
Broadband light sources with liquid core
Research scientists were successful in producing broadband laser light in the mid-infrared range with the help of liquid-filled optical fibers. With these fibers, they also provided experimental proof of a new dynamics of hybrid solitons -- a new type of temporally and spectrally stationary light waves resulting from the unique characteristics of the liquid core.