The effect of stress on Atlantic salmon's congenital immunity to IPN
Stress affects the congenital immune defence system. New doctoral research has revealed how stress can lower the immunity of salmon and increase its susceptibility to viral infection.
Keeping time: Circadian clocks
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 ...
Wild orangutans stressed by eco-tourists, but not for long, study out of Borneo finds
Wild orangutans that have come into contact with eco-tourists over a period of years show an immediate stress response but no signs of chronic stress, unlike other species in which permanent alterations in ...
You need to be a healthy to be a heart-throb: study
(PhysOrg.com) -- Men with strong immune systems are most attractive to members of the opposite sex according to a new study from the University of Abertay Dundee and partners.
A unique on-off switch for hormone production
Weizmann scientists have revealed a new kind of on-off switch in the brain for regulating the production of a main biochemical signal from the brain that stimulates cortisol release in the body.
Perinatal flavor learning and adaptation to being weaned: All the pig needs is smell
Weaning can be a stressful time, but new research published in the Oct. 19 edition of the online journal PLoS ONE shows that the presence of familiar flavors in food, or even in the surrounding air, has positive effects on pig ...
Voting in elections is stressful -- emotionally and physiologically
A new study, conducted has found that the level of cortisol -- the "stress hormone" -- in individuals immediately prior to casting a vote was significantly higher than in the same individuals in similar non-voting conditions. ...
Biological links found between childhood abuse and adolescent depression
Queen's University professor Kate Harkness has found that a history of physical, sexual or emotional abuse in childhood substantially increases the risk of depression in adolescence by altering a person's neuroendocrine response ...
Stress hormone cortisol to help overcome phobias
Behavioral problems linked to cortisol levels
Cortisol, the so-called stress hormone, seems to behave in contradictory ways in children. Some youngsters with behavioral problems have abnormally high levels of cortisol, while others with identical problems ...
Biological changes in suicidal patients
Depressed and suicidal individuals have low levels of the stress hormone cortisol in their blood and saliva. They also have substances in their spinal fluid that suggest there is increased inflammation in the brain. These ...
Does adolescent stress lead to mood disorders in adulthood?
Stress may be more hazardous to our mental health than previously believed, according to new research from Concordia University. A series of studies from the institution have found there may be a link between the recent rise ...
Study: Stress hormone blocks testosterone's effects
High levels of the stress hormone cortisol play a critical role in blocking testosterone's influence on competition and domination, according to new psychology research at The University of Texas at Austin.
Study reveals stress hormone impacts on alcohol recovery
Scientists at the University of Liverpool have found that high levels of a stress hormone in recovering alcoholics could increase the risk of relapse.