When a member of the wolf pack leaves the group, the howling by those left behind isn't a reflection of stress but of the quality of their relationships. So say researchers based on a study of nine wolves from two packs living ...
Plants & Animals
Aug 22, 2013
13
1
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 ...
Ecology
Dec 6, 2017
0
1061
(Phys.org)—An international team of researchers has found that deep voices in primates, including humans, might have evolved more as a means to intimidate rivals than to attract females for mating. In their paper published ...
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 ...
Analytical Chemistry
Jul 20, 2018
0
170
(Phys.org) —A diverse team of international researchers has found that women with stronger immune systems don't necessarily have prettier faces than women whose immune system is not so strong. In their paper published in ...
Our planet was revolving on its axis, turning night into day every 24 hours, for 4.5 billion years - long before any form of life existed here. About a billion years later, the very first simple bacterial cells came into ...
Cell & Microbiology
Oct 2, 2012
4
0
(PhysOrg.com) -- Scientists in the US have developed a disposable, non-invasive new biosensor to monitor levels of the stress hormone, cortisol, and say the ultrasensitive electrochemical impedance technique it uses could ...
You know the feeling. It's impossible to resist. You just need to yawn.
Plants & Animals
Jul 6, 2018
1
22
Nanoscientists have developed a wearable textile that can convert body movement into useable electricity and even store that energy. The fabric potentially has a wide range of applications from medical monitoring to assisting ...
Nanomaterials
Jun 5, 2023
0
117
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 ...
Plants & Animals
Oct 17, 2018
0
8
