Vitamin D is a fat-soluble vitamin obtainable from the diet, as well as a seco-steroidal prohormone produced in the skin by ultraviolet B (UVB, 290–320 nm) from sunlight. Vitamin D, as a precursor of a potent steroid hormone, undergoes two-step metabolism in the liver and kidney to synthesize a biologically active

Though the legend is inaccurate — hair that has already grown out of the follicle does not change color — a new study from researchers at Columbia University Vagelos College of Physicians and Surgeons is the first to offer quantitative evidence linking psychological stress to graying hair in people. And

Dementia is an umbrella term for loss of memory and other thinking abilities severe enough to interfere with daily life. What is your risk of developing Dementia? Calculator here.

Objective: Low levels of vitamin D were found to be associated with different mental disorders. However, the role of vitamin D in the pathogenesis of PTSD is unclear. In this study, we aimed at investigating whether PTSD is linked to reduced vitamin D levels and vitamin D deficiency. Moreover, we

Calcium oxalate crystals are not encountered in normal animal tissues, except for the human thyroid, where they were found in 79 of 100 routine consecutive autopsies. They appear during childhood, and numbers of crystals increase with age. In diffuse hyperplasia, prevalence was higher, but crystals were fewer than expected. In

Vitamin D has been found to be involved in a variety of public health-significant diseases including bone diseases [1], diabetes [2], cardiovascular diseases [3], cancer [4], and metabolic syndrome [4]. Due to its various extraosseous effects and the association between its deficiency and insulin resistance along with diabetes initiation, the

Benefits are possible but evidence is sparse, indirect, and inconclusive The covid-19 pandemic has led to many unfounded and exaggerated claims about possible treatments. One high profile controversy has been the role of vitamin D in the prevention and management of covid-19,12 so the National Institute for Health and Care

Attention Deficit Hyperactivity Disorder (ADHD) is a common childhood neurobehavioural disorder defined by symptoms of developmentally inappropriate inattention, impulsivity and hyperactivity. A recent meta-analysis estimated the worldwide prevalence of ADHD to be 5.29% 1, making it the most prevalent psychiatric disorder of childhood. The social and economic costs of childhood

A new study from Karolinska Institute in Sweden shows that long-term endurance training in a stable way alters the epigenetic pattern in the human skeletal muscle. The research team behind the study, which is being published in the journal Epigenetics, also found strong links between these altered epigenetic patterns and

This publication is the second release of information from the National Health Measures Survey (NHMS), the biomedical component of the 2011–13 Australian Health Survey (AHS). Around 11,000 respondents aged 5 years and over across Australia voluntarily provided blood and/or urine samples, which were tested for a range of chronic disease

Calcium oxalate crystals are not encountered in normal animal tissues, except for the human thyroid, where they were found in 79 of 100 routine consecutive autopsies. They appear during childhood, and numbers of crystals increase with age. In diffuse hyperplasia, prevalence was higher, but crystals were fewer than expected. In

Unexplained infertility (UI), defined as the inability to conceive after 12 months of unprotected intercourse with no diagnosed cause, affects 10% to 30% of infertile couples. An improved understanding of the mechanisms underlying UI could lead to less invasive and less costly treatment strategies. Abnormalities in thyroid function and hyperprolactinemia