Washington DC, [USA] July 11 (ANI): Noradrenaline, a neurotransmitter is responsible for arousal in the brain since it plays a vital role for humans to sense the world around them.
Washington D.C. [U.S.A.], Apr 26 (ANI): Turns out, there is a logical reason behind the sudden shift to light sleep from a deep sleep over the course of a night.
WashingtonD.C [US], Oct. 26 (ANI): A new study from UCL researchers found that subtle, unconscious increase in arousal - indicated by a faster heartbeat and dilated pupils - shape our confidence for visual experiences.