Social and Cultural Aspects of Drinking - Culture Chemistry and Consequences
The cross-cultural study of alcohol represents a classic natural experiment: a single species (Homo Sapiens), a single drug substance (ethanol) and a great diversity of behavioural outcomes.
Coupled electrophysiological, hemodynamic, and cerebrospinal fluid oscillations in human sleep
During non–rapid eye movement sleep, low-frequency oscillations in neural activity support memory consolidation and neuronal computation. Sleep is also associated with increased interstitial fluid volume and clearance of metabolic waste products. It is unknown why these processes co-occur and how they are related. Fultz et al. simultaneously measured electrophysiological, hemodynamic, and flow signals in the human brain (see the Perspective by Grubb and Lauritzen). Large oscillations of fluid inflow to the brain appeared during sleep and were tightly coupled to functional magnetic resonance imaging signals and entrained to electroencephalogram slow waves. Slow oscillatory neuronal activity thus leads to oscillations in blood volume, drawing cerebrospinal fluid into and out of the brain. Science , this issue p. [628][1]; see also p. [572][2] Sleep is essential for both cognition and maintenance of healthy brain function. Slow waves in neural activity contribute to memory consolidation, whereas cerebrospinal fluid (CSF) clears metabolic waste products from the brain. Whether these two processes are related is not known. We used accelerated neuroimaging to measure physiological and neural dynamics in the human brain. We discovered a coherent pattern of oscillating electrophysiological, hemodynamic, and CSF dynamics that appears during non–rapid eye movement sleep. Neural slow waves are followed by hemodynamic oscillations, which in turn are coupled to CSF flow. These results demonstrate that the sleeping brain exhibits waves of CSF flow on a macroscopic scale, and these CSF dynamics are interlinked with neural and hemodynamic rhythms. [1]: /lookup/doi/10.1126/science.aax5440 [2]: /lookup/doi/10.1126/science.aaz5191
Long-awaited cystic fibrosis drug could turn deadly disease into a manageable condition
Thirty years after scientists discovered the defective gene that causes cystic fibrosis, two new trials show a therapy could help 90 percent of patients. The FDA approved the triple drug, Trikafta, five months ahead of its deadline.
He pioneered technology that fueled the Human Genome Project. Now his greatest challenge is curing his own son
Ron Davis, a geneticist at Stanford, is one of our era's greatest inventors. Now, with his son ravaged by an incurable disease, Davis is leading a dream team of Nobel-winning scientists to find a cure.
Addiction exerts a long and powerful influence on the brain that manifests in three distinct ways: craving for the object of addiction, loss of control over its use, and continuing involvement with it despite adverse consequences. While overcoming ad...
Old brains make neurons, possibly protecting against Alzheimer's
Old brains from people who didn't have dementia have much higher rates of neurogenesis than the brains of people with Alzheimer’s disease, the study found.
By David Tuller, DrPH Over the years, I’ve slammed U.S. medical and health care institutions that have championed the GET/CBT treatment paradigm for the illness or cluster of illnesses variously known as ME, CFS, ME/CFS or CFS/ME. I have done this both before and after the U.S. Centers for Disease Control and Prevent
For decades, the medical community has ignored mountains of evidence to wage a cruel and futile war on fat people, poisoning public perception and ruining millions of lives. It's time for a new paradigm.
Study: Walking may protect post menopausal women from heart failure
New research suggests that post-menopausal women who walk at an average pace for 40 minutes several times per week decrease risk of heart disease by 25 percent.
Watch trailer for Out of My Head, the documentary film about Migraine
In Out of My Head, a filmmaker, seeking treatment for her daughter's migraine attacks, discovers a confounding neurological disease and learns why a devastating condition, afflicting nearly a billion people worldwide, remains so deeply misunderstood.
Low Dose Naltrexone (LDN) Fibromyalgia and Chronic Fatigue Syndrome Resource Center - Health Rising
Find out how low dose naltrexone may help in fibromyalgia and chronic fatigue syndrome including doses, finding pharmacies and doctors, treatment regimens, side effects, patient stories and more.
Three NIH Funded ME/CFS Research Centers….and (What Else?) a Controversy
Almost two years after Dr. Collins announced that the NIH would reinvigorate ME/CFS, the NIH has finally provided funding for three research centers and one data center. - ProHealth.com