D iscussion. R eferences. J Gen Psychol — Cushing BS, Hite R. Subsequent studies selecting on endocrine function might provide compelling evidence for causality Garlandbut this has yet to be attempted. We provide a summary of key endocrine findings from a long-term experiment in which mice are bred for high levels of voluntary wheel running.
In keeping with the designs of the other seven studies, control subjects in the latter two studies were matched to case patients as closely as possible by age and time between diagnosis and blood collection.
Increases in progesterone can reduce sexual desire. Testosterone levels change over time, and lower…. Each follicle contains one egg. Later in life, during adulthood, they are in charge of regulating the reproductive cycle.
During a period, blood and tissue from the uterus exit the body through the vagina. However, sex hormones do not directly regulate the ability to copulate in primates including humans.
Br J Cancer ; 62 : —3. Ovariectomy was associated with low levels of androgens, and cigarette smoking and alcohol were associated with moderate increases in all the sex hormones. Voluntary exercise impacts on the rat hypothalamic-pituitary-adrenocortical axis mainly at the adrenal level. Journal of Applied Physiology.
Selection for agonistic behavior in wild female mice.
Koteja presents a model involving energy assimilation and parental care in the evolution of endothermy, but does not mention the endocrine system. Neuroscience and Biobehavioral Reviews. No non-selected control line was maintained, so in subsequent papers regarding correlated responses it is not always easy to discern which line s changed.
Integr Comp Biol 54 :7— About this article Cite this article Key, T.