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Psychiatry
Meta-analysis
Systematic review and meta-analysis of insomnia prevalence and risk factors in patients with coronary heart disease
Half of All Heart Disease Patients Can't Sleep — Here's Why That's Dangerous
This systematic review and meta-analysis evaluated insomnia prevalence and associated factors in 5,928 patients with coronary heart disease.
Half of all heart disease patients suffer from insomnia, a common but rarely treated condition linked to depression, anxiety, and diabetes.
Frontiers
Apr 14, 2026
Psychiatry
RCT
Group-based TSC intervention mediates improvements in depression and anxiety via insomnia severity in adults with MDD
Did fixing sleep actually help depression, or was it just how patients felt about their rest?
This secondary analysis of a randomized controlled trial examined 152 adults with major depressive disorder receiving a group-based Transdia…
Feeling like sleep improved drove the real gains in depression and anxiety, proving that how patients perceive their rest matters more than …
Apr 13, 2026
Psychiatry
RCT
Breathwork reduces anxiety, depression, and stress in paramedic students in 12-week RCT
Breathwork practice may reduce stress and anxiety in student paramedics
A single-blind RCT of 98 student paramedics found that a 12-week structured breathwork protocol (A52 Breath Method) significantly reduced an…
A 12-week breathing routine helped student paramedics lower stress, anxiety, and depression while boosting resilience without any reported s…
Apr 9, 2026
Anesthesiology & Pain Medicine
RCT
Progressive Muscle Relaxation May Reduce Pain and Improve Sleep After Open Heart Surgery
Relaxation technique may help reduce pain and improve sleep after heart surgery
A single-center, single-blind RCT of 60 patients undergoing open heart surgery found that twice-daily Progressive Muscle Relaxation (PMR) on…
A simple relaxation technique helped heart surgery patients cut pain from a 9 out of 10 to just 1.5 and sleep better within three days.
Apr 3, 2026
Psychiatry
Mindfulness meditation training modulates neural connectivity differently in healthy and depressed individuals
Can mindfulness meditation change your brain differently if you're depressed?
An interventional study of 86 subjects (51 healthy, 35 depressed) found that mindfulness meditation training modulated somatomotor network-r…
Mindfulness meditation rewired brain networks for body awareness differently in healthy people versus those with depression, and these chang…
medRxiv
Apr 3, 2026
Psychiatry
RCT
Food aid provision associated with reduced anxiety and insomnia symptoms in food-insecure Pakistani adults
Can food aid help people sleep better? A study in Pakistan suggests it might
An exploratory RCT of 186 participants from food aid distribution centers in Pakistan found food aid provision was associated with significa…
In Pakistan, people receiving food aid reported less anxiety and better sleep than those waiting for help, suggesting hunger itself can keep…
Apr 3, 2026
Psychiatry
Insomnia's association with cognitive function studied in 170 bipolar disorder outpatients
Study examines link between insomnia and thinking problems in bipolar disorder
An observational study examined 170 outpatients with bipolar disorder to assess insomnia's relationship with cognitive functioning.
People with bipolar disorder who struggle to sleep may also face thinking problems, though this study only shows a connection without provin…
Frontiers
Mar 30, 2026
Questions about Insomnia
Can breathwork reduce stress and anxiety in paramedic students with insomnia?
Yes, a 12-week RCT found that slow diaphragmatic breathwork significantly reduced stress, anxiety, and insomnia in paramedic students.
Full answer →