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Wearable device measures cortisol in sweat

The hormone cortisol rises and falls naturally throughout the day and can spike in response to stress, but current methods for measuring cortisol levels require waiting several days for results from a lab. By the time a person ...

date2 hours ago in Analytical Chemistry
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Putting bacteria to work

The idea of bacteria as diverse, complex perceptive entities that can hunt prey in packs, remember past experiences and interact with the moods and perceptions of their human hosts sounds like the plot of some low-budget ...

date7 hours ago in Cell & Microbiology
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Human influence detected in changing seasons

For the first time, scientists from Lawrence Livermore National Laboratory (LLNL) and five other organizations have shown that human influences significantly impact the size of the seasonal cycle of temperature in the lowest ...

date8 hours ago in Earth Sciences
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