Daily Archives: 2 April 2024

It’s not just you: Young people appear and feel older when under stress

A recent study has discovered that younger adults tend to look and feel older when they experience stress, particularly when they perceive they have less control over their lives.

“Shevaun Neupert, a professor of psychology at North Carolina State University and the corresponding author of the study, highlights the considerable amount of research indicating that stress causes older adults to feel their age or even older than they are,” says Neupert. “The existing literature suggests that feeling older than one’s actual age among seniors is linked with various adverse health outcomes. However, there needs to be more research focusing on this effect among younger adults – individuals in their teens, 20s, and 30s. Gaining a better understanding of how this phenomenon affects people across different age groups could aid in creating interventions to safeguard both mental and physical health.

Neupert also points out that this research comes at a critical time, as there appears to be a rise in the stress levels experienced by younger adults today, compared to the stress levels endured by previous generations at the same age.”

This study gathered data from 107 younger adults aged between 18 and 36 years, with the average participant being around 20 years old. Participants completed a baseline survey and detailed daily surveys over eight consecutive days. These daily surveys aimed to measure the participants’ daily stress levels, their perceived control over their lives on that day, and how old they felt and looked each day.

Neupert explains, “A significant observation from the study was that participants felt and appeared older on days when they reported higher than usual levels of stress, but this effect was only noted on days when they also felt they had less control over their daily lives than usual. It’s crucial to note that the measurements of both stress and control were relative.”

That means that participants reporting lower-than-usual stress levels still exhibited the ageing effect if their stress was higher than they typically reported. Similarly, those who felt they maintained significant control over their lives still showed the effect if they reported less power than usual.

“This finding broadens our understanding by showing that the aging effect of stress isn’t exclusive to older individuals; young people are affected too,” Neupert remarks. “This is particularly significant given the knowledge that chronic stress can lead to negative health outcomes and that people generally report higher levels of stress as they transition from young adulthood into midlife. Given that young people are currently experiencing unprecedented levels of stress for their age, and this stress influences their perceived age, it’s crucial for us to closely monitor the indicators used to evaluate the physical and mental health impacts of stress in this generation.”

More information: Sofia E. Lee et al, The effect of control beliefs on the relationship between daily stressors and subjective age in younger adults, Mental Health Science. DOI: 10.1002/mhs2.56

Journal information: Mental Health Science Provided by North Carolina State University

Selenium as an indicator of metabolic syndrome in middle-aged women

A study published in the journal Aging, known in academic circles as “Aging (Albany NY)” according to MEDLINE/PubMed and as “Aging-US” by Web of Science, in its Volume 15, Issue 6, focuses on “Selenium as a predictor of metabolic syndrome in middle-aged women.”

Metabolic syndrome (MetS) represents a significant and widespread clinical concern, increasingly recognised as an epidemic on a global scale. The trace element selenium is acknowledged for its pivotal role in maintaining metabolic equilibrium. Notably, its potential influence on the expression and functionality of PPAR-γ, a crucial factor in energy regulation and cellular differentiation, has been brought to light. In this groundbreaking research, the team comprising Daria Schneider-Matyka, Anna Maria Cybulska, Małgorzata Szkup, Bogumiła Pilarczyk, Mariusz Panczyk, Agnieszka Tomza-Marciniak, and Elżbieta Grochans from the Pomeranian Medical University in Szczecin, alongside collaborators from the West Pomeranian University of Technology and the Medical University of Warsaw, embarked on an exploration of the interplay between selenium levels and MetS in women, a demographic particularly vulnerable to MetS as they age.

The core objective of the research was to elucidate the correlation between selenium levels and MetS, mainly focusing on how PPAR-γ impacts MetS incidence under the moderating influence of selenium.

The research encompassed 390 middle-aged women and was structured in several phases: a questionnaire segment, anthropometric data collection, and the biochemical analysis of blood samples for glycemia, triglyceride, HDL cholesterol, and selenium concentrations, along with a genetic study focusing on PPAR-γ polymorphisms. Findings indicated that selenium levels could modulate the impact of the G allele of the PPAR-γ gene on the development of increased waist circumference and elevated blood pressure, presenting a nuanced interplay between genetic factors and selenium in the metabolic profile. Higher selenium levels were associated with more favourable HDL cholesterol levels, especially among participants fitting the MetS diagnostic criteria.

The study’s conclusions are multifaceted. No direct effect of selenium on MetS or its components was established. The study did not demonstrate a direct impact of specific PPAR-γ gene alleles on MetS or its components. Selenium levels appeared to influence waist circumference among G allele carriers and arterial hypertension among carriers of both C and G alleles, likely through modulating PPAR-γ expression. Elevated selenium levels were correlated with an increased likelihood of higher HDL levels in individuals diagnosed with MetS.

This investigation underscores the complexity of selenium’s role in metabolic health, highlighting its potential implications for managing components of MetS such as waist size, blood pressure, and HDL cholesterol levels. The researchers suggest that serum selenium concentrations are a noteworthy factor in addressing specific MetS components, aligning with the global health initiative to optimise selenium intake to counteract diseases linked to both selenium deficiency and excess. This study contributes valuable insights into the nuanced interactions between diet, genetics, and metabolic health, marking a significant step forward in our understanding of MetS and the potential for targeted nutritional interventions.

More information: Daria Schneider-Matyka et al, Selenium as a predictor of metabolic syndrome in middle age women, Aging-US. DOI: 10.18632/aging.204590

Journal information: Aging-US Provided by Impact Journals LLC