On World Health Day 2020, let ’s discuss the stress response and the General Adaptation Syndrome (2/3)
The hypothalamus–pituitary–adrenal (HPA) axis acts to release cortisol into the blood stream, as cortisol calls the body into action to combat stress. When high amounts of cortisol interact with the hypothalamus, the HPA axis will slow down its activity. The amygdala detects stress, while the prefrontal cortex regulates our reactions to stress. Source: Bezdek K and Telzer E (2017) Have No Fear, the Brain is Here! How Your Brain Responds to Stress. Front. Young Minds. 5:71. doi: 10.3389/frym.2017.00071 _______ [Editor’s note: Continued from yesterday’s Exploring the human brain and how it responds to stress (1/3)] Stress was put on the map, so to speak, by a Hungarian — born Canadian endocrinologist named Hans Hugo Bruno Selye (ZEL — yeh) in 1950, when he presented his research on rats at the annual convention of the American Psychological Association. To explain the impact of stress, Selye proposed something he called the General Adaptation Syndrome (GAS), which he said had three components. According to Selye, when an organism experiences some novel or threatening stimulus it responds with an alarm reaction. This is followed by what Selye referred to as the recovery or resistance stage, a period of time during which the brain repairs itself and stores the energy it will need to deal with the next stressful event. He said that if the stress-causing events continue, neurological exhaustion can set in. This phenomenon came to be referred to p...
With COVID-19 becoming the number one priority for researchers around the globe, Parham Hashemi describes his role in overseeing the new trials being launched during the pandemic.
Publication date: Available online 30 May 2020Source: Indian Heart JournalAuthor(s): Aditya Kapoor, Rakesh Yadav
Getty Images ... Hair salons, restaurants and retail shops are slowly reopening for business in communities throughout the country. ... And this summer many pools will join them, contingent on guid...
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This article has been updated to include the latest health services data on Covid-19 as of Sunday, May 31 On the heels of Gov. Doug Ducey announcing the reopening of Arizona schools in the fall and youth sports this summer, the Arizona Department of Health Services has reported two days in a row of record-setting numbers of new Covid-19 cases in the state. On May 30, ADHS reported 790 new cases – the most in a single day since the first case was reported in late January. A day…
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This article discusses basic renal vascular anatomy, common imaging findings, and current and potential future imaging protocols for various renovascular pathologic conditions. PMID: 32471544 [PubMed - as supplied by publisher]
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