Vitamin D is an important nutrient in the body that plays a vital role in immune system function. Several epidemiologic studies have shown that low vitamin D levels are found in a large percentage of COVID-19 patients with acute respiratory failure and that vitamin D levels may predict mortality in COVID-19 infection. Based on these findings, vitamin D supplementation may be an effective approach to preventing and/or treating COVID-19. Potential underlying mechanisms and clinical trial data evaluating the impact of supplementation in humans are described below.

Romantic relationships involving neurodivergent (ND) adults, in particular a subset where at least one partner in the relationship is autistic, present unique dynamics and challenges regarding partnership communication, emotional connection, intimacy, and engagement. To cater for such relationships, adjustments to relationship therapy may be needed. This scoping review aimed to investigate what is known about relationship-counselling approaches for couples in which an autistic profile has been identified, either through diagnosis or self-identification. A lack of empirical research exploring specific relationship-counselling therapies for ND couples was found; moreover, only two of the nine studies reviewed had qualitatively investigated a specific approach. All studies reached consensus on the need for greater therapist familiarity with autism when working with ND couples. Other common recommendations were to avoid viewing autism as a deficit, to approach ND relationships with a cultural lens to facilitate mutual understanding, and to ensure social support for the neurotypical partner of the relationship. Overall, this review found a need for greater empirical research in ND relationship counselling, including follow-up research to test recommendations.