A 72-year-old marathon runner, Mogens Hedengran, defies age with exceptional fitness, prompting investigation into the trainability of older adults. Despite genetics playing a significant role in Hedengran’s condition, research suggests that starting to train later in life can yield substantial benefits.

While Hedengran’s lifelong activity contributes to his remarkable fitness – including a resting heart rate comparable to someone in their 20s or 30s – studies indicate that even those starting exercise in their 60s can achieve similar improvements as they would in their 20s. Furthermore, strength training for three months as a 70-year-old can effectively reduce physiological age in terms of strength by three years.

Beyond the benefits of exercise for older adults, new research highlights emerging health concerns and dietary recommendations for longevity. A study indicates an increase in colon cancer among younger individuals and points to a potential overlooked cause detectable in childhood. Another large study across 101 countries has identified a specific dietary approach associated with increased lifespan, which a Danish researcher supports. Additionally, an American neuropsychologist emphasizes the variability of concussion symptoms, urging attention to individual differences.

Regarding overall well-being, a South Korean study reveals potential negative impacts of working excessively long hours (52 hours or more per week) on brain function. The study found that individuals with longer work hours showed differences in brain areas responsible for emotional regulation, attention, and memory, potentially leading to difficulties in these areas. While the study acknowledges its limitations, including a small sample size and lack of causal relationships, brain researcher Troels W. Kjær suggests prioritizing leaving work on time as a general health tip.