Sexual intimacy in couples is associated with longer telomere length

Maternal caregiving stress and metabolic health: Sexual activity as a potential buffer

Chronic stress lead to dysregulation of metabolic hormones, creating risk for obesity and type 2 diabetes. Based on previous work suggesting the potential for sexual activity to relieve psychological stress and reduce stress-related neuroendocrine activity, the present research explored sexual activity as a protective factor. We focused on chronic stress in the form of caregiving stress, comparing premenopausal mothers of a child with an autism spectrum disorder vs. a neurotypical child, in relation to metabolic hormones - insulin (and insulin resistance as assessed by HOMA), leptin, and ghrelin. Then, we explored the moderating role of sexual activity. Our results showed that high-stress mothers showed higher levels of insulin, insulin resistance, and lower levels of ghrelin compared to low-stress mothers. However, sexual activity modulated these associations such that among mothers who were sexually active (as coded from their daily diaries), no significant differences in these outcomes were observed between groups. This buffering effect of sexual activity was distinguishable from the buffering effect of physical activity and independent of global relationship satisfaction. Together, our findings provide novel evidence supporting the potential protective effects of sexual activity from chronic stress-related metabolic disease risk.

Does activation of oxytocinergic reward circuits postpone the decline of the aging brain?

Oxytocin supports reproduction by promoting sexual- and nursing behavior. Moreover, it stimulates reproductive organs by different avenues. Oxytocin is released to the blood from terminals of oxytocinergic neurons which project from the hypothalamus to the pituitary gland. Concomitantly, the dendrites of these neurons discharge oxytocin into neighboring areas of the hypothalamus. At this location it affects other neuroendocrine systems by autocrine and paracrine mechanisms. Moreover, sensory processing, affective functions, and reward circuits are influenced by oxytocinergic neurons that reach different sites in the brain. In addition to its facilitating impact on various aspects of reproduction, oxytocin is revealed to possess significant anti-inflammatory, restoring, and tranquilizing properties. This has been demonstrated both in many in-vivo and in-vitro studies. The oxytocin system may therefore have the capacity to alleviate detrimental physiological- and mental stress reactions. Thus, high levels of endogenous oxytocin may counteract inadequate inflammation and malfunctioning of neurons and supportive cells in the brain. A persistent low-grade inflammation increasing with age-referred to as inflammaging-may lead to a cognitive decline but may also predispose to neurodegenerative diseases such as Alzheimer's and Parkinson. Interestingly, animal studies indicate that age-related destructive processes in the body can be postponed by techniques that preserve immune- and stem cell functions in the hypothalamus. It is argued in this article that sexual activity-by its stimulating impact on the oxytocinergic activity in many regions of the brain-has the capacity to delay the onset of age-related cerebral decay. This may also postpone frailty and age-associated diseases in the body. Finally, oxytocin possesses neuroplastic properties that may be applied to expand sexual reward. The release of oxytocin may therefore be further potentiated by learning processes that involves oxytocin itself. It may therefore be profitable to raise the consciousness about the potential health benefits of sexual activity particularly among the seniors.

The effect of virtual cognitive-behavioral sexual counseling on sexual function and sexual intimacy in pregnant women: a randomized controlled clinical trial

Background & aim

Pregnancy is associated with numerous physical and psychological changes and affects the sexual function of couples. Since the root of many marital problems lies in the quality of the relationship and sexual function, the present study investigates the effect of virtual cognitive-behavioral sexual counseling on pregnant women’s sexual function and intimacy.

Methods & Materials

This study is a randomized clinical trial, and 80 pregnant women aged 18 to 35 years and in 16–24 weeks of pregnancy were assigned to two intervention and control groups based on randomized blocks from June 2021 to July 2021. The control group received routine prenatal care, but the intervention group, in addition to routine prenatal care, underwent virtual counseling with a cognitive-behavioral approach during eight sessions of 90 minutes. Data were collected using the Female Sexual Function Index (FSFI) and sexual intimacy questionnaire. SPSS software was used for statistical analysis.

Results

The comparison of mean scores of sexual function and intimacy in the two groups before the intervention was not statistically significant with each other. However, after the intervention, the mean scores of sexual function and intimacy in the intervention group were significantly increased compared to the control group (p < 0.001). The effect size of the intervention was 0.52 for sexual function and 0.272 for sexual intimacy.

Conclusion

Virtual cognitive-behavioral counseling can be used as an effective treatment to promote sexual function and intimacy of women during pregnancy.

Trial registration

IRCT20161230031662N10. Registry date: 21/06/2021.

Oxytocin Release: A Remedy for Cerebral Inflammaging

Oxytocin facilitates reproduction both by physiological and behavioral mechanisms. Oxytocinergic neurons emerging from the hypothalamus release oxytocin from the pituitary gland to the blood by axonal discharge to regulate reproductive organs. However, at the same time, oxytocin is secreted into neighboring areas of the hypothalamus from the dendrites of these neurons. Here, the peptide acts by autocrine and paracrine mechanisms to influence other neuroendocrine systems. Furthermore, oxytocinergic neurons project to many different locations in the brain, where they affect sensory processing, affective functions, and reward. Additional to its regulatory role, significant anti-inflammatory and restoring effects of oxytocin have been reported from many invivo and in-vitro studies. The pervasive property of the oxytocin system may enable it generally to dampen stress reactions both peripherally and centrally, and protect neurons and supportive cells from inadequate inflammation and malfunctioning. Animal experiments have documented the importance of preserving immune- and stem cell functions in the hypothalamus to impede age-related destructive processes of the body. Sexual reward has a profound stimulating impact on the oxytocinergic activity, and the present article therefore presents the hypothesis that frequent sexual activity and gratigying social experiance may postpone the onset of frailty and age-associated diseases by neural protection from the bursts of oxytocin. Furthermore, suggestions are given how the neuroplastic properties of oxytocin may be utilized to enhance sexual reward by learning processes in order to further reinforce the release of this peptide.

Dietary Approaches to Women's Sexual and Reproductive Health

Over the course of the reproductive life span, it is common for women to experience one or more of the most common gynecologic conditions, including sexual dysfunction, polycystic ovary syndrome, fibroids, endometriosis, and infertility. Although current management guidelines often turn to the established pharmaceutical approaches for each of these diagnoses, the scientific literature also supports an evidence-based approach rooted in the paradigm of food as medicine. Achieving healthy dietary patterns is a core goal of lifestyle medicine, and a plant-forward approach akin to the Mediterranean diet holds great promise for improving many chronic gynecologic diseases. Furthermore, creating an optimal preconception environment from a nutritional standpoint may facilitate epigenetic signaling, thus improving the health of future generations. This state-of-the-art review explores the literature connecting diet with sexual and reproductive health in premenopausal women.

Oxytocin may have a therapeutical potential against cardiovascular disease. Possible pharmaceutical and behavioral approaches

Based on the ancient role of oxytocin and its homologues as amplifiers of reproduction we argue for an evolutionary coupling of oxytocin to signaling pathway which support restorative mechanisms of cells and tissue. In particular, the survival and function of different categories of stem cells and primordial cells are enhanced by mitogen-activated protein kinase (MAPK) pathways. Furthermore, oxytocin stimulates the AMP-activated protein kinase pathway (AMPK) in numerous of cell types which promotes the maintenance of different cell structures. This involves autophagic processes and, in particular, may support the renewal of mitochondria. Mitochondrial fitness may protect against oxidative and inflammatory stress - a well-documented effect of oxytocin. The combined specific trophic and protective effects oxytocin may delay several degenerative phenomena including sarcopenia, type-2 diabetes and atherosclerosis. These effects may be exerted both on a central level supporting the function and integrity of the hypothalamus and peripherally acting directly on blood vessels, pancreas, heart, skeletal muscles and adipose tissue etc. Furthermore, in the capacity of being both a hormone and neuromodulator, oxytocin interacts with numerous of regulatory mechanisms particularly the autonomic nervous system and HPA-axis which may reduce blood pressure and affect the immune function. The potential of the oxytocin system as a behavioral and molecular target for the prevention and treatment of cardiovascular disease is discussed. Focus is put on the affiliative and sexual significance and the different options and limitations associated with a pharmaceutical approach. MeSH: Aging, Atherosclerosis, Heart, Hypothalamus, Inflammation, Love, Orgasm, Oxytocin.

Frequency of Sexual Activity and Long-term Survival after Acute Myocardial Infarction

BACKGROUND

Previous studies have shown an inverse relationship between sexual activity and mortality in the general population. We evaluated the association between sexual activity and long-term survival among patients with acute myocardial infarction.

METHODS

Patients aged ≤65 years (n=1120; mean age, 53) discharged from 8 hospitals in central Israel after first myocardial infarction from 1992-1993 were followed for mortality through 2015. Frequency of sexual activity was self-reported during the index hospitalization (baseline; referring to the year preceding the infarct) and after 5 and 10-13 years, along with sociodemographic and clinical data. Cox proportional hazards models were constructed to estimate the association with all-cause mortality in time-dependent sexual activity categories.

RESULTS

At baseline, a > once per week frequency of sexual activity was reported by 42% of the patients, whereas no sexual activity was reported by 6%. After 10-13 years, the rates were 21% and 27%, respectively. Lower sexual activity was associated with older age, female sex, lack of a steady partner and more comorbidities. During follow-up, 524 deaths (47%) occurred. An inverse relationship was observed between sexual activity frequency and death, with hazard ratios (95% confidence intervals) of 0.30 (0.23-0.38) for > once per week, 0.36 (0.28-0.46) for once per week, and 0.53 (0.42-0.66) for < once per week, compared with none. After adjusting for relevant confounding factors, the estimates were attenuated to 0.68 (0.50-0.91), 0.63 (0.48-0.83), and 0.72 (0.57-0.93), respectively (P for trend = .004).

CONCLUSIONS

Using repeated assessments of sexual activity after myocardial infarction, an inverse association was demonstrated with mortality, which was only partly accounted for by measured potential confounders.

Impact of extended working periods on genomic and telomeric DNA and on inflammatory markers: Results of an intervention study with office workers and carpenters

Aim of this study was to clarify if extension of the work phase has an impact on DNA- stability, telomere lengths and inflammatory markers. We conducted an intervention trial with office workers (n = 24) and carpenters (n = 10), who changed their working schedule from 8 to 12 h per day over a period of 3 months. The work of both groups involved only moderate physical activity. We found no evidence for induction of double strand breaks (measured in γH2AX assays) and relative telomere lengths (relTL_36B4 and ALB) in lymphocytes in the two study groups. Furthermore, no overall changes of the levels of C-reactive protein (CRP), interleukin-6 (IL-6) and thiobarbituric acid reactive substances (TBARS) in plasma were detected. However, we found in agreement with earlier investigations a moderate (not significant) increase of the CRP levels with age. Furthermore, significant higher CRP concentrations (P = 0.03) were detected in young individuals (21-30 years) as a consequence of the extended working period. Taken together our findings indicate that prolongation of the working hours has no pronounced impact on DNA stability, telomere shortening and inflammatory markers; but the increase of the CRP concentrations in young workers may be indicative for adverse health effects in this subgroup.