Jillian A. Johnson

Sleeping well with cancer: a systematic review of cognitive behavioral therapy for insomnia in cancer patients

Individuals with cancer are disproportionately affected by sleep disturbance and insomnia relative to the general population. These problems can be a consequence of the psychological, behavioral, and physical effects of a cancer diagnosis and treatment. Insomnia often persists for years and, when combined with already high levels of cancer-related distress, may place cancer survivors at a higher risk of future physical and mental health problems and poorer quality of life. The recommended first-line treatment for insomnia is cognitive behavioral therapy for insomnia (CBT-I), a non-pharmacological treatment that incorporates cognitive and behavior-change techniques and targets dysfunctional attitudes, beliefs, and habits involving sleep. This article presents a comprehensive review of the literature examining the efficacy of CBT-I on sleep and psychological outcomes in cancer patients and survivors. The search revealed 12 studies (four uncontrolled, eight controlled) that evaluated the effects of CBT-I in cancer patients or survivors. Results suggest that CBT-I is associated with statistically and clinically significant improvements in subjective sleep outcomes in patients with cancer. CBT-I may also improve mood, fatigue, and overall quality of life, and can be successfully delivered through a variety of treatment modalities, making it possible to reach a broader range of patients who may not have access to more traditional programs. Future research in this area should focus on the translation of evidence into clinical practice in order to increase awareness and access to effective insomnia treatment in cancer care.

Clinical practice guidelines on the evidence-based use of integrative therapies during and after breast cancer treatment

Answer questions and earn CME/CNE

Sodium Consumption: An Individual's Choice?

Excess intake of dietary salt is estimated to be one of the leading risks to health worldwide. Major national and international health organizations, along with many governments around the world, have called for reductions in the consumption of dietary salt. This paper discusses behavioural and population interventions as mechanisms to reduce dietary salt. In developed countries, salt added during food processing is the dominant source of salt and largely outside of the direct control of individuals. Population-based interventions have the potential to improve health and to be cost saving for these countries. In developing economies, where salt added in cooking and at the table is the dominant source, interventions based on education and behaviour change have been estimated to be highly cost effective. Regardless, countries with either developed or developing economies can benefit from the integration of both population and behavioural change interventions.

The effect of trait rumination on adaptation to repeated stress.

Objective Exaggerated and prolonged cardiovascular responses to mental stress have been implicated in the etiology of hypertension. Rumination may play a role in the maintenance or reactivation of cardiovascular responses to mental stress and prevent cardiovascular adaptation or create sensitization on reexposure. The purpose of this study was to evaluate the influence of trait rumination on patterns of cardiovascular response adaptation after repeated exposure to a mental stressor. Methods Cardiovascular data were collected from 82 undergraduate women during a baseline period and during a 5-minute emotional recall task on two separate occasions. Trait rumination was assessed using the Stress-Reactive Rumination Scale. Results A series of session (Sessions 1 and 2)–by–trait rumination general linear model repeated-measures analyses of covariance revealed several session–by–trait rumination interactions, such that participants who displayed higher levels of trait rumination showed less SBP (partial &eegr;2 = 0.83, p = .01), diastolic blood pressure (partial &eegr;2 = 0.84, p = .01), and heart rate (partial &eegr;2 = 0.82, p = .02) adaptation to the laboratory mental stress task at the second exposure relative to those with lower levels of trait rumination. Conclusions These findings suggest that trait rumination may contribute to sustained increases in blood pressure by influencing adaptation to mental stress. Abbreviations BP = blood pressure; DBP = diastolic blood pressure; ER = emotional recall; HR = heart rate; SBP = systolic blood pressure; SRRS = Stress-Reactive Rumination Scale

Effects of Omega-3 Fatty Acid Supplementation on Heart Rate Variability at Rest and During Acute Stress in Adults With Moderate Hypertriglyceridemia

Objective This study examined the dose-dependent effects of eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA) supplementation on heart rate variability (HRV) at rest and during standard laboratory stress tasks. We also investigated whether EPA + DHA supplementation was associated with changes in mood state. Methods This placebo-controlled, double-blind, randomized, three-period crossover trial (8-week treatment, 6-week washout) compared two doses of EPA + DHA supplementation (0.85 and 3.4 g/d) in 26 adults with elevated triglycerides. After each treatment period, HRV was assessed during an acute stress protocol that included a resting baseline, standard laboratory stress tasks (speech task and cold pressor), and recovery periods. In addition, mood state was assessed. Results Root mean square of successive differences in interbeat interval and total power increased 9.9% and 20.6%, respectively, after the high dose relative to placebo (Tukey p = .016 and .012, respectively). The low dose was not significantly different from the high dose or placebo dose. There was a trend for a treatment effect on high-frequency HRV (p = .058), with 21.0% greater power observed after the high dose compared with placebo (Tukey p = .052). Mood did not differ between treatments, and there was no association between mood state and HRV. Conclusions In healthy adults with elevated triglycerides, supplementation of 3.4 g/d EPA + DHA resulted in greater HRV, whereas 0.85 g/d EPA + DHA had no effect. These results indicate that EPA + DHA supplementation may improve autonomic tone in adults at increased risk for cardiovascular disease within 8 weeks. Trial Registration NCT00504309(ClinicalTrials.gov).

High trait rumination is associated with blunted nighttime diastolic blood pressure dipping.

BackgroundBlunted blood pressure (BP) dipping during nighttime sleep has been associated with an increased risk of cardiovascular events. Psychological traits have been associated with prolonged cardiovascular activation and a lack of cardiovascular recovery. This activation may extend into nighttime sleep and reduce BP dipping.PurposeThis study aims to evaluate the association between trait rumination and nighttime BP dipping.MethodsSixty women scoring either high or low on trait rumination underwent one 24-h ambulatory BP monitoring session. Self-reported wake and sleep times were used to calculate nighttime BP.ResultsHigh trait rumination was associated with less diastolic blood pressure (DBP) dipping relative to low trait rumination. Awake ambulatory BP, asleep systolic blood pressure (SBP) and DBP, and asleep SBP dipping were not associated with trait rumination.ConclusionsIn a sample of young women, high trait rumination was associated with less DBP dipping, suggesting that it may be associated with prolonged cardiovascular activation that extends into nighttime sleep, blunting BP dipping.

The LITE study: Rationale and protocol for a randomized controlled trial of light therapy for cancer-related fatigue in cancer survivors.

UNLABELLED Fatigue is a common and distressing symptom that can last for months or years in up to one-third of cancer survivors. Despite its prevalence, the nature and mechanisms of cancer-related fatigue are poorly understood and the available treatments may not provide sufficient relief. Fatigue has been identified as a significant contributor to decreased quality of life, making it an important target for intervention. One approach that may be a safe and inexpensive treatment is bright light therapy. METHODS This study is a 4-week blinded randomized controlled trial. Subjects will be men and women who meet criteria for cancer-related fatigue and have completed cancer treatment. Subjects will be randomly assigned to receive a Litebook treatment device that produces either bright white light (treatment) or dim red light (active control). The devices will be used daily for 30min upon waking for a period of four weeks. The primary outcome, fatigue, will be measured with the Multidimensional Fatigue Symptom Inventory-SF. Secondary outcomes include mood disturbance, sleep quality, quality of life, diurnal cortisol, and inflammatory biomarkers. Fatigue assessments will be completed weekly and secondary outcomes will be assessed at pre- and post-intervention. CONCLUSIONS The current research will examine the effect of light exposure on cancer-related fatigue and its potential psychological, behavioral, and biological mechanisms. If successful, this research would support the use of light therapy for the management of persistent fatigue in cancer survivors, expanding existing treatment options. It may also improve upon the current understanding of the mechanisms that underlie cancer-related fatigue.

Online positive affect journaling improves mental distress and well-being in general medical patients: Evidence from a preliminary randomized controlled trial (Preprint)

Background Positive affect journaling (PAJ), an emotion-focused self-regulation intervention, has been associated with positive outcomes among medical populations. It may be adapted for Web-based dissemination to address a need for scalable, evidence-based psychosocial interventions among distressed patients with medical conditions. Objective This study aimed to examine the impact of a 12-week Web-based PAJ intervention on psychological distress and quality of life in general medical patients. Methods A total of 70 adults with various medical conditions and elevated anxiety symptoms were recruited from local clinics and randomly assigned to a Web-based PAJ intervention (n=35) or usual care (n=35). The intervention group completed 15-min Web-based PAJ sessions on 3 days each week for 12 weeks. At baseline and the end of months 1 through 3, surveys of psychological, interpersonal, and physical well-being were completed. Results Patients evidenced moderate sustained adherence to Web-based intervention. PAJ was associated with decreased mental distress and increased well-being relative to baseline. PAJ was also associated with less depressive symptoms and anxiety after 1 month and greater resilience after the first and second month, relative to usual care. Conclusions Web-based PAJ may serve as an effective intervention for mitigating mental distress, increasing well-being, and enhancing physical functioning among medical populations. PAJ may be integrated into routine medical care to improve quality of life. Trial Registration ClinicalTrials.gov NCT01873599; https://clinicaltrials.gov/ct2/show/NCT01873599 (Archived by WebCite at http://www.webcitation.org/73ZGFzD2Z)

Is Perceived Growth Associated with Momentary Indicators of Health and Well-Being in People with Asthma or Rheumatoid Arthritis?

BACKGROUND Perceived growth (PG) refers to perceptions of positive changes that unfold over time after experiencing trauma. Higher PG is often associated with positive long-term health, but the processes through which PG may influence health are unclear. The present study examines two potential pathways among individuals living with asthma or RA: (1) by promoting momentary indicators of health and well-being in everyday life, and (2) by buffering against stress. METHOD In a micro-longitudinal design, 128 participants with asthma (n = 97) or rheumatoid arthritis (n = 31) reported perceived growth using the Post-Traumatic Growth (PTG) Inventory and subsequently completed ecological momentary assessments (EMAs) for one week. Participants were signaled five times a day to report on health-related indicators, including affect, disease interference, social interactions, and stress. RESULTS Multilevel modeling revealed that higher PTG was associated with significantly less negative affect and greater positive affect in everyday life. There were no significant associations between PTG and momentary disease interference, pleasantness of social interactions, or stress, nor evidence that PTG buffered against effects of stress on health-related outcomes. CONCLUSIONS This research highlights the utility of examining PG in everyday life. Results suggest that closer examination of momentary affect as a process by which PG may facilitate positive health outcomes is warranted.