Skip to content

The Dr Kumar Discovery

All Articles Quick Takes

Hormonal Health Metabolic Health Cardiovascular Health Neurologic Health Musculoskeletal Health GI Health Kidney Health Skin Health Hair Health Immunological Health Oral Health Cancer

About Newsletter Contact

Podcast Research Quick Takes Systems About Newsletter Contact Search

Umbrella Review

Articles tagged with "Umbrella Review"

Scientific research papers and brain neurotransmitter diagrams on medical desk with analytical lighting

Serotonin Theory of Depression: Landmark Review Challenges Chemical Imbalance Model

November 23, 2025

The Dr Kumar Discovery

Exploring the questions that matter most about your health. A podcast and research platform by Dr. Ravi Kumar, MD.

Content

Podcast
Articles
Quick Takes
Newsletter
Systems

TDKD

About
Contact
Sponsor
Calculators

Legal

Privacy Policy
Terms & Conditions
Accessibility
Disclaimer

© 2026 Kumar Media LLC. All Rights Reserved.