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R.E. Hengsterman



Ashwagandha (Withania somnifera) for Stress, Sleep, and Cognitive Health: What the 2025 Evidence Really Says
For insomnia-like complaints and nonrestorative sleep—especially in high-stress schedules (hello, night shift)—ashwagandha shows consistent, if modest, benefits.

R.E. Hengsterman


Recovery From Shift Work: Evidence-Based Strategies for Health and Performance
Introduction: Why Recovery From Shift Work Matters Shift work sustains our 24/7 society — from hospitals and emergency services to logistics, aviation, and manufacturing. Yet, working outside the natural 9-to-5 disrupts the body’s circadian rhythm, increasing the risk for sleep disorders, metabolic syndrome, cardiovascular disease, and mental health decline. According to Frontiers in Neurology (Kalkanis et al., 2023), up to 38% of shift workers experience Shift Work Sleep D

R.E. Hengsterman


The Role of Dietary Supplements in Improving Sleep and Daytime Function for Shift Workers
Shift workers often face challenges like poor sleep quality and fatigue, which dietary supplements (DSs) may help alleviate. This systematic review and meta-analysis explore the efficacy of DSs in improving sleep quality and daytime function among shift workers, offering insights into their potential benefits and safety profile.

R.E. Hengsterman
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