Gizmodo: Study of Erections Finds ‘Growers Versus Showers’ Are a Real Thing Scientists in Spain have perhaps finally settled an important debate: Men really can be “growers or showers.” The team examined data from hundreds of men and found that their penises fell along a ... IFLScience: At Last, We Have A Scientific Definition For Whether You Are A “Grower” Or A “Shower” At Last, We Have A Scientific Definition For Whether You Are A “Grower” Or A “Shower” Penile erection is the result of a complex interaction of psychological, neural, vascular, and endocrine factors, and is often associated with sexual arousal, sexual attraction or libido, although erections can also be spontaneous. Erections happen in stages with the penis, starting soft and becoming gradually harder until it stands outward or upward.
This happens most often in response to sexual arousal but can sometimes occur for no reason at all (particularly during puberty and the teen years). In this video, Jonathan Bennion from the Institute of Human Anatomy discusses the mechanism behind human erections. As testosterone levels rise during puberty, it triggers physiological changes in the genitals, leading to the ability to achieve erections. Erections during puberty can occur spontaneously and unpredictably, often without any direct sexual stimulation.
