Frontier mental health research: psychedelics & drug studies

Each month our editorial team sifts through hundreds of papers and curates notable findings—for practitioners and informed readers who want to stay current with the evidence. Subscribe to the monthly Research Digest for expert analysis and concise summaries of key papers.

4 papers

Global prevalence and burden of depressive and anxiety disorders in 204 countries and territories in 2020 due to the COVID-19 pandemic

COVID-19 Mental Disorders Collaborators
PubMed Central (PMC) Summary & key facts 2021 5,135 citations

This study reviewed surveys and used global models to measure how the COVID-19 pandemic changed rates of major depressive disorder and anxiety disorders in 2020. It found that places with higher COVID-19 infection rates and bigger drops in movement had larger increases in these disorders. The authors estimate about 53.2…

COVID-19 and Mental Health Health disparities and outcomes Long-Term Effects of COVID-19

Biobehavioral approach to distinguishing panic symptoms from medical illness

Tunnell, Natalie C., Corner, Sarah E., Roque, Andres D., et al.
www.frontiersin.org Summary & key facts 2024 5 citations

This narrative review examines how panic disorder causes sudden, distressing body symptoms that can look like real medical problems. It focuses on six common symptoms (non-cardiac chest pain, palpitations, dyspnea, dizziness, abdominal distress, and paresthesia), reviews medical illnesses that can occur with or mimic panic (including long COVID), and argues…

Anxiety, Depression, Psychometrics, Treatment, Cognitive Processes Long-Term Effects of COVID-19 Psychosomatic Disorders and Their Treatments

How Are Brain Fog Symptoms Related to Diet, Sleep, Mood and Gastrointestinal Health? A Cross-Sectional Study

Canan Altınsoy, Derya Dikmen
Medicina Summary & key facts 2025 1 citation

This cross-sectional survey (data collected 1 July–15 December 2022) asked people about brain fog, diet, sleep, mood, and gut symptoms. The study found that people who had COVID-19 — especially those with reinfection — and women reported higher brain fog scores. Gastrointestinal symptoms and mood scores were linked to worse…

Long-Term Effects of COVID-19 Sleep and related disorders Sleep and Wakefulness Research

Is your brain tired? Researchers are discovering the roots of mental fatigue

Lynne Peeples
Nature Summary & key facts 2025 0 citations

This Nature news feature by Lynne Peeples (10 December 2025) looks at new research on mental fatigue — why thinking hard can make people feel worn out. It explains that scientists are trying to build better ways to measure cognitive exhaustion. The article says those better measures could help point…

COVID-19 and Mental Health Intensive Care Unit Cognitive Disorders Long-Term Effects of COVID-19
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