Blondie_Bombshell
New member
Psychological stress, of the kind you experience when a loved one is ill, you lose your job or from long-term conflict, is different to stress caused by physical exertion. Nevertheless, sports scientists have always believed that both types of stress have a negative effect on muscles and that the mechanism works via the stress hormone cortisol.
It is indeed so that psychological stress raises cortisol levels. But according to this recent American research, psychological stress also boosts the production of myostatin – an even stronger muscle inhibitor than cortisol.
The researchers made their discovery when they housed mice in a different cage every day for a week [CS], or placed them for a short period every day in a small straitjacket [RS]. The latter treatment is particularly distressing for these animals.
After 7 days the muscle mass of both groups had decreased, but by more in the RS mice.
fitnessparadiseworld
It is indeed so that psychological stress raises cortisol levels. But according to this recent American research, psychological stress also boosts the production of myostatin – an even stronger muscle inhibitor than cortisol.
The researchers made their discovery when they housed mice in a different cage every day for a week [CS], or placed them for a short period every day in a small straitjacket [RS]. The latter treatment is particularly distressing for these animals.
After 7 days the muscle mass of both groups had decreased, but by more in the RS mice.
fitnessparadiseworld
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