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The cause of nocturnal penile tumescence is not known with certainty. In a wakeful state, in the presence of mechanical stimulation with or without an arousal, erection is initiated by the parasympathetic division of the autonomic nervous system with minimal input from the central nervous system. [5]
Waking up earlier in the morning increases the response. [11]Shift work: nurses working on morning shifts with very early awakening (between 4:00–5:30 a.m.) had a greater and prolonged cortisol awakening response than those on the late day shift (between 6:00–9:00 a.m.) or the night shift (between 11:00 a.m.–2:00 p.m.). [12]
Morning wood" is one of several similar slang or colloquial terms referring to the phenomenon of nocturnal penile tumescence (erection during and immediately ...
“Kidney disease is a silent killer, so many do not have any signs of kidney disease until they are in the late stages of the disease,” she says. For this reason, nine in 10 people with chronic ...
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Not long ago, her mom, Becky, took a video of this heartwarming routine to show Dad while he's at work, but now Dad plays just as important of a role in the pup's favorite part of her morning.
For some people it may work to announce their plan on social media — and invite others to join in and report back on their progress. “That’s where I think ‘dry January’ has kind of ...
Kidneys of various animals show evidence of evolutionary adaptation and have long been studied in ecophysiology and comparative physiology. Kidney morphology, often indexed as the relative medullary thickness, is associated with habitat aridity among species of mammals [49] and diet (e.g., carnivores have only long loops of Henle). [36]