Tag: how

How self-reactive immune cells are allowed to develop

Directly after birth, the immune system completes production of a subtype of antibody-producing immune cells, B-1, that are to last for a lifetime. No more B1 cells are formed after that point. However, these cells are self-reactive—they produce not only antibodies against foreign substances, but also against the body’s own substances, and it is unclear

How much sleep you need, and all your bedtime questions answered

Sleep is one of those things that’s necessary for absolutely everybody, while also being pretty hard to understand to understand or find for some. Insomnia is an ever-present spectre for some, while conditions like sleep paralysis, sleep apnea, severe snoring, or night terrors pervade the lives of others. Given that sleep can affect everything from

How meaning is represented in the human brain

Representations reflecting non-linguistic experience have been detected in brain activity during reading in study of healthy, native English speakers published in JNeurosci. The research brings us one step closer to a more complete characterization of human language. Words and their relationship to one’s experience are thought to be combined in the brain to enable understanding

How animal research is helping fight antibiotic resistance

People do not expect to die from a simple infection. But that might change: the world is running out of effective antibiotics. For decades, diseases like bacterial gastroenteritis and colitis have not been a serious health threat, thanks to antibiotics. These small molecules are able to kill bacteria or stop them from reproducing and spreading

White matter affects how people respond to brain stimulation therapy aimed at depression and stroke

White matter affects how people respond to brain stimulation therapy aimed at depression and stroke Tiny changes in the microscopic structure of the human brain may affect how patients respond to an emerging therapy for neurological problems. The technique, called non-invasive electrical brain stimulation, involves applying an electrical current to the surface of a patient’s

How the brain ‘approximates’ without actually counting

From the time of early infancy, humans are endowed with the capacity to approximate the number of objects in their visual field, an ability that continues throughout life and may underlie the development of more complex mathematical skills. For years, scientists have explored how people estimate numerical quantities without physically counting objects one by one,

How to tell if your teen is depressed

Teen depression is a serious mental health problem that causes a persistent feeling of sadness and loss of interest in activities. It affects how your teenager thinks, feels and behaves, and it can cause emotional, functional and physical problems. Although depression can occur at any time in life, symptoms may be different between teens and

How My Neglectful Childhood Affects My Children

My husband is a lover… and a yeller. He is thoughtful and understanding; sweet, kind and funny as hell; but his temper is short. When my daughter “acts out,” he immediately raises his voice. Of course, his response sounds harsh — at least on paper — but he does show restraint. His words may be

How many people have eating disorders?

Last week, federal health minister Greg Hunt announced that more than 60,000 Australians will be asked about their mental health and well-being as part of the Intergenerational Health and Mental Health Study. The mental health survey will be run in 2020, with new data on how common mental illness is due the year after. This

How to relieve dry, irritated eyes

(HealthDay)—Do all the ads for dry eye relief have you thinking you could have this condition? If you’ve ever felt like you had a grain of sand in your eye when nowhere close to the beach, you could be experiencing dry eye. Exactly what is dry eye? Simply put, it’s when you aren’t making enough