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The human brain is the center of the human nervous system and is a highly complex organ. Enclosed in the cranium, it has the same general structure as the brains of other mammals, but is over three times as large as the brain of a typical mammal with an equivalent body size.

High biological age linked to increased risk of stroke and dementia

People who have a higher biological age than their actual chronological age have a significantly increased risk of stroke and dementia, especially vascular dementia.

6 Nov 2023

AI could revolutionize sudden cardiac death prediction and prevention

Predicting sudden cardiac death, and perhaps even addressing a person's risk to prevent future death, may be possible through artificial intelligence (AI) and could offer a new move toward prevention and global health strategies, according to preliminary research to be presented at the American Heart Association's Resuscitation Science Symposium 2023.

6 Nov 2023

Regular marijuana use may raise the risk for heart failure, stroke or heart attack

Using marijuana regularly may raise the risk for heart failure, stroke or heart attack even after accounting for other cardiovascular risk factors such as Type 2 diabetes, high blood pressure and obesity, according to two preliminary studies to be presented at the American Heart Association's Scientific Sessions 2023.

6 Nov 2023

Depression, anxiety and chronic stress increase risk for heart and brain health complications

The heart and mind are strongly connected, with depression, anxiety and chronic stress all increasing the risk for heart and brain health complications, according to two preliminary studies to be presented at the American Heart Association's Scientific Sessions 2023.

6 Nov 2023

TIMP2 protein identified as key player in brain plasticity and memory

Researchers explored the molecular and cellular processes regulated by tissue inhibitor of metalloproteinases-2 (TIMP2) in the extracellular matrix (ECM) of the adult brain hippocampus.

6 Nov 2023

Science says teens need more sleep. So why is it so hard to start school later?

High school classes start so early around this city that some kids get on buses at 5:30 in the morning.

6 Nov 2023

Can PTSD deteriorate women's cardiovascular and neurological health?

Whether posttraumatic stress disorder (PTSD) symptoms in civilian midlife women negatively affected their cardiovascular and neurocognitive health.

6 Nov 2023

Study shows the effects of oral contraceptive use on women’s brains

More than 150 million women worldwide use oral contraceptives. Combined OCs (COCs), made up of synthetic hormones, are the most common type. Sex hormones are known to modulate the brain network involved in fear processes.

6 Nov 2023

SSRIs show promise in easing post-COVID struggles, Dutch study reveals

Dutch study finds SSRIs significantly alleviate post-COVID syndrome symptoms, offering promising treatment avenues and shedding light on neurobiological mechanisms at play.

5 Nov 2023

Avian flu decimates 5% of Peru's sea lions, sparking conservation alarm

Over 5,000 Peruvian sea lions, approximately 5% of Peru's population, succumbed to a mass mortality event linked to the avian influenza A(H5N1) virus, signaling an urgent need for research and conservation efforts to prevent further declines. The rapid spread of the virus among these colonially breeding mammals highlights potential risks of cross-species transmission and the necessity for heightened monitoring to avert new pandemics.

5 Nov 2023

Life's hardships rewire the brain: Study pinpoints neural changes from adversity

Research reveals that adverse life experiences heighten amygdala response and diminish prefrontal cortex activity, indicating potential neural mechanisms of psychological vulnerability.

5 Nov 2023

Decoding long COVID, pathophysiology, epidemiology, diagnosis, and management

Comprehensive review unravels the complexities of long COVID, spanning pathophysiology to management strategies, and underscores the need for targeted therapies and early diagnosis.

5 Nov 2023

How caffeine impacts cerebral blood flow

Caffeine consumption affects cerebral blood flow in young adults, with the study showing a dose-dependent reduction in arterial velocity post-intake. This impact on the cardiovascular system suggests caffeine's vasodilatory effects on cerebral arteries.

5 Nov 2023

Pregnant women in blighted neighborhoods have higher testosterone levels, study finds

Pregnant women living in blighted neighborhoods with high levels of known stressors have higher levels of testosterone – the primary sex hormone in males -- which disrupt hormone regulation and may lead to life-threatening complications during and after childbirth, according to Rutgers research.

3 Nov 2023