Studies of scrotal coloration in male vervet monkeys (Chlorocebus aethiops) suggest that it is an important intrasexual signal, with relatively dark, colourful males dominating paler males. To date, no studies have examined the influence of male colour on intersexual social interactions in vervet ...
Aside from hirsutism, another significant symptom of hormone imbalance in women is irregular menstruation. A normal menstrual cycle lasts about 21 to 35 days. However, when hormones are out of balance, menstruation may occur only once every few months, indicating that the ovaries aren’t releasing...
Schöning S, Engelien A, Bauer C, Kugel H, Kersting A, Roestel C, et al. Neuroimaging differences in spatial cognition between men and male-to-female transsexuals before and during hormone therapy. J Sex Med. 2010;7(5):1858–67. PubMed Google Scholar Carrillo B, Gómez-Gil E, Ra...
a serious or chronic, debilitating illness or infection major physical trauma childbirth major surgery high fever hormone imbalances (like low or high thyroid) or androgen excess rapid or extreme weight loss nutritional or vitamin deficiencies that require supplementation (iron, zinc, vitamin D deficienc...
Instead of this, several variations on a theme exist for achieving what is effectively the same end. In both mammals and birds, sex is determined by specific, visibly distinguishable chromosomes. In mammals, males (the heterogametic sex) have an X and a Y chromosome, while females (homogame...
`Mommy, do you have sex?' 来自 EBSCO 喜欢 0 阅读量: 633 作者: D Hales 摘要: Presents tips for parents on handling their children's questions about sex. Two key messages; Explanation of sex as expression of love; Television as opportunity for discussing sex. 年份: 1993 ...
Acknowledging this gender difference doesn't imply that weight-lifting women can't combat this bit of biological determinism and beef up their biceps; instead, men simply have a head start in that department thanks to their elevated levels of testosterone. The sex hormone has anabolic effects, m...
Prediction models for hormone receptor status in female breast cancer do not extend to males: further evidence of sex-based disparity in breast cancerARTIFICIAL-INTELLIGENCEESTROGENMARKERSBreast cancer prognosis and management for both men and women are reliant upon estrogen receptor alpha (ER alpha) ...
Males can also spray—and they are usually the culprit. However, any cat can spray and getting them fixed won’t necessarily stop the issue. If you think your cat might be entering a heat cycle or reaching sexual maturity, it’s time to get them fixed. ...
a medical history, measurement of the testes, semen analysis, and determination of serum levels of follicle-stimulating hormone (FSH), luteinizing hormone (LH), and testosterone. Plasma total cholesterol (T-C) and triglycerides (TG) were measured enzymatically using a Hitachi 912 analyzer (Roche ...