A 2025 longitudinal analysis of 1,528 older Chinese Americans by Chen et al. in the Journal of Prevention of Alzheimer’s Disease says something more specific than “stress causes Alzheimer’s”: it isn’t the count of stressors that tracks memory decline — it’s a latent trait the authors call stress internalization, a bundle of high perceived stress, …
A 2026 male-mouse study found that 30 mg/kg dexamethasone for 5 days increased light-phase wakefulness (t13 = 4.122, p = 0.0012), decreased NREM sleep (t13 = 4.412, p = 0.0007), and amplified orexin-neuron activity during NREM-to-wake transitions (F1,9 = 6.941, p = 0.0272). The result points to orexin-linked hyperarousal as a testable explanation for steroid-induced …
In a world increasingly burdened by the psychological strains of modern living, the quest for effective and safe treatments for stress-related symptoms has never been more urgent. A recent study evaluated the stress-mitigating properties of Affron® – a Saffron extract – in animal models, revealing its potent effects on the body’s stress response systems, including …
Depression is a complex mental health disorder that affects millions of people worldwide, presenting a significant challenge for current medical treatments due to various side effects and drug resistances associated with conventional antidepressants. In response, researchers have turned their attention to natural plant polysaccharides, which have shown promising antidepressant effects through diverse mechanisms. This exploration …
Depression, a complex and multifaceted disorder, challenges both individuals and society with its pervasive effects and the limitations of current treatments. Recent research has spotlighted the opioid system, specifically the kappa opioid receptor (KOR), as a potential target for innovative treatments. This focus is grounded in findings that KOR activation influences stress hormone levels and …
Depression, a pervasive global health issue, significantly impairs quality of life and burdens the healthcare system. Despite the availability of numerous antidepressants, their effectiveness is often limited, pushing researchers to explore alternative treatments. Berberine, a natural compound with a diverse pharmacological profile, has shown promising antidepressant effects, offering a potential complementary or alternative approach to …
Calorie restriction (CR) is increasingly recognized for its potential benefits beyond just weight loss, including reducing anxiety, slowing aging, and mitigating the risk of obesity. Recent research focused on how both short-term and long-term CR affect behavior and gene expression in various brain regions, providing insights into the molecular underpinnings of these effects. Highlights: Behavioral …