All news from Aviation Medicine & Aerospace Medicine
Predicting the consequences of one’s own movements can be challenging when confronted with completely novel environmental dynamics, such as microgravity in space. The absence of gravitational force disrupts internal models of the central nervous system (CNS) that have been tuned to the dynamics of a constant 1-g environment since birth.
In the context of object manipulation, inadequate internal models produce prediction uncertainty evidenced by increases in the grip force (GF) safety margin that ensures a stable grip during unpredicted load perturbations. This margin decreases with practice in a novel environment. However, it is not clear how the CNS might react to a reduced, but non-zero, gravitational field, and if adaptation to reduced gravity might be beneficial for subsequent microgravity exposure.
Ear infections are one of the most common infections among infants. While there are different ear infections, otitis media is the most common. Statistics show that most kids will contract an infection at least once before they turn 2 years old.
Causes and Symptoms of Ear Infections
The ear has three parts: outer, middle (behind the eardrum) and inner (regulates hearing and balance). The two types of ear infections are swimmer’s ear, which affects the outer ear, and otitis media, an inflammation of the middle ear.
Research finds post-traumatic stress disorder does not directly lead to type 2 diabetes mellitus (T2DM), instead, obesity in PTSD patients accounts for the increased risk. The study, "The Role of Obesity in the Association Between Posttraumatic Stress Disorder and Incident Diabetes" was published in JAMA Psychiatry.
Post-traumatic stress disorder is associated with risk factors for type 2 diabetes, including poor diet, lack of exercise, alcohol abuse and obesity. The risk factors may interact with hypothalamic-pituitary-adrenal changes to increase the risk of type 2 diabetes.
According to a study, researchers evaluated a brief intervention delivered by dermatologists is associated with improvements in patients' sun protection behavior as well as their satisfaction with dermatologists' communication. The study was published in JAMA Dermatology.
A new study suggests that the closure of emergency departments does not lead to more deaths. The research, which analyzed five emergency departments (EDs) in England that were downgraded between 2009 and 2011, found there was no impact on death rates upward or downward, despite patients having to travel further to access emergency care.
People with prediabetes who go to bed later, eat meals later and are more active and alert later in the day those who have an "evening preference" have higher body mass indices compared with people with prediabetes who do things earlier in the day, or exhibit morning preference. The higher BMI among people with evening preference is related to their lack of sufficient sleep. The study was published in the journal Frontiers in Endocrinology.
According to a study, researchers examine that the bond between parent and child extends far beyond sharing similar looks or behaviors, as symptoms of depression in teens and parents appear to be linked. The study was published in the American Psychological Association.
The incidence of coronary artery compression in children fitted with epicardial pacemakers may be slightly more common than previously believed. After reviewing patient records at Boston Children's Hospital, they advocate for stricter monitoring to identify patients at risk and prevent complications. The study was published in the journal HeartRhythm, the official journal of the Heart Rhythm Society and the Cardiac Electrophysiology Society.
