Fight Aging! is a weekly newsletter dedicated to news and commentary on combating age-related diseases through modern medical interventions, and it is available for subscription on their website.

The newsletter features various studies and discussions, including topics like blood-brain barrier disruption in older adults, disagreements among aging experts, and the effects of strokes on the thalamus.

Research suggests that dysfunction in the blood-brain barrier is linked to memory decline in cognitively normal older adults, indicating it could serve as an early biomarker for cognitive decline and Alzheimer's disease.

A study highlights that degeneration of the thalamus after a stroke significantly contributes to cognitive and language deficits in survivors, suggesting it should be a focus for post-stroke treatment.

Recent findings show that Olympic athletes exhibit signs of slowed epigenetic aging compared to their peers, hinting at a connection between elite physical performance and biological aging mechanisms.

The founder of Fight Aging!, Reason, also provides strategic consulting services for the longevity industry, aiding investors and entrepreneurs in navigating this evolving field.

Fecal microbiota transplantation (FMT) is being investigated as a method to rejuvenate the aging gut microbiome, potentially enhancing healthspan and lifespan by restoring beneficial microbial diversity.

Current research indicates that much of the cellular senescence detected in tissues may originate from senescent immune cells rather than structural cells, underscoring the importance of immunosenescence in the aging process.

Aging researchers continue to express diverse opinions on the fundamental causes and mechanisms of aging, reflecting the complexity of the field and the ongoing lack of consensus on definitions and treatments.