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Hyperandrogenism, especially high levels of testosterone, can cause serious adverse effects if left untreated. High testosterone levels are associated with other health conditions such as obesity, hypertension, amenorrhea (cessation of menstrual cycles), and ovulatory dysfunction, which can lead to infertility.
Conversely, “with too much testosterone, women often have acne, too much hair on the body, hair loss on the head, high blood pressure, elevated cholesterol, skipped cycles, or problems ...
The pattern between testosterone and aggression was first observed in seasonally breeding birds, where testosterone levels rise modestly with the onset of the breeding season to support basic reproductive functions. However, during periods of heightened male aggression, testosterone levels increase further to a maximum physiological level.
Testosterone levels very with age, according to the Cleveland Clinic, and start to drop around age 30 or 40. Women turn to weight loss drugs in menopause: What to know about the benefits and risks
However, while individual studies have provided strong results on the effect size of fetal testosterone on aggressive or violent behavior, meta-analyses have remained less conclusive. A 2017 meta-analysis of fetal testosterone levels found that fetal testosterone levels (measured by the 2D:4D digit ratio ) had only a small effect size of 0.036 ...
In both women and men, it’s normal for testosterone levels to drop with age — starting at about age 30 in men and around 40 in women. The decline doesn’t mean that it necessarily needs to be ...
[49] [28] High dosages of testosterone (with levels of > 50 ng/dL) have a risk of masculinization (e.g., acne, hair growth, voice changes) with long-term therapy in women. [49] [28] High dosages of testosterone but not low dosages of testosterone enhance the effects of low dosages of estrogens on sexual desire.
The notion that peer aggression is associated with adaptive dating outcomes is further supported by studies that note that females who frequently displayed indirect aggression began dating much earlier in life than individuals who experienced female-female peer victimization, for whom dating behavior had a much later onset. [29]