Related topics: stress hormones

Scales offer insight into chronic stress of fish, research finds

For years, aquatic researchers have sought an easy way to determine when wild fish are under stress. Now University of Guelph researchers have shown for the first time that a key stress hormone, cortisol, accumulates in fish ...

Dogs mirror owner's stress

The levels of stress in dogs correlate with the stress of their owners, according to a new study from Linköping University, Sweden. The scientists believe that dogs mirror their owner's stress level, rather than vice versa. ...

Social insecurity also stresses chimpanzees

An international team of researchers from the Max Planck Institute for Evolutionary Anthropology in Leipzig, Germany, conducted behavioral observations and collected urine samples for cortisol analysis of male chimpanzees ...

Sleepovers reduce stress in shelter dogs

Of the estimated more than 4 million dogs that end up in animal shelters each year, about half a million are euthanized. To increase the number of shelter dogs that are adopted, Arizona State University's Canine Science Collaboratory ...

Fish undisturbed by flash photography

Fish experience stress, as do mammals and humans. When under stress, fish release the hormones adrenaline and cortisol. A team of scientists spearheaded by IGB has investigated whether flash photography induces an increase ...

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 ...

What is it about yawning?

You know the feeling. It's impossible to resist. You just need to yawn.

Stress test: New study finds seals are stressed-out by sharks

While a little added stress may be helpful to flee a dangerous situation, or to meet an approaching deadline, it's no secret that prolonged exposure to the stress hormone cortisol is linked to health problems. So, what effects ...

Animal welfare: Potential new indicator of chronic stress in horses

Cortisol, deemed the quintessential stress hormone, allows us to cope with important events and imminent threats. A spike in cortisol levels mobilizes necessary resources—such as by tapping into our body's reserves to produce ...

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