What is one outcome of decreased sex hormones in adulthood?

Decreased sex hormones in adulthood can lead to various physiological changes, particularly in individuals going through menopause or andropause. One prominent outcome of this hormonal decline is the occurrence of symptoms such as night sweats and hot flushes. These symptoms are largely attributed to the decreased levels of estrogen in women, which impacts the body's thermoregulation and can result in sudden feelings of warmth, sweating, and discomfort.

As for the other options, they do not align with the physiological effects of decreased sex hormones. Increased fertility and capability to reproduce are generally associated with higher levels of sex hormones, as they play a crucial role in reproductive functions. Enhanced physical stamina is also typically linked to robust hormonal levels, which help maintain muscle mass and overall vitality. Thus, the symptoms of night sweats and hot flushes serve as an accurate reflection of the effects of decreased sex hormones during adulthood.