In a 12-month unpredictable chronic mild stress model in mice, chronic stress amplified systemic inflammation, damaged multiple tissues and shortened lifespan. Single-cell RNA sequencing across organs showed a shared signature: fewer lymphocytes and expanded myeloid cells, with lungs and kidneys showing the strongest epigenetic and mitochondrial disruption. Both nicotinamide mononucleotide (NMN) and Bazi Bushen (BZBS), a traditional Chinese herbal compound, eased the aging phenotypes and restored immune balance. Schisandra chinensis and Cnidium monnieri constituents improved mitochondrial function through AMPK-SIRT-PGC-1α activation.
The evidence here comes entirely from mice, and no human can act on it yet. The myeloid-skewing finding is the most interesting part: it mirrors the immune drift seen in human aging and in people under sustained psychosocial stress, and it frames stress as a driver of inflammaging rather than a bystander. NMN rescuing the phenotype fits existing rodent work on NAD+ precursors, though human trials of NMN have shown improved blood NAD+ without consistent functional benefit. The herbal formula is a multi-ingredient mixture, so attributing effects to two constituents' compounds remains tentative, and the abstract gives no dosing, sample sizes or lifespan effect sizes to judge robustness. Mouse stress paradigms also translate imperfectly to human stress exposure. Editorially, this is incremental and hypothesis-generating: it supports the AMPK-sirtuin-mitochondria axis as a target, but the proven lever for stress-related aging in people remains reducing the stress itself through sleep, exercise and social support, not supplementation.