
Healthy aging isn't just about living longer; it's about living well. At the heart of this concept is something called intrinsic capacity (IC), which includes vital elements like cognition (thinking skills), locomotion (movement), vitality (energy), sensory capacity (sight and hearing), and psychological well-being. Researchers recently delved into the Gan-Dau Healthy Longevity Plan, focusing on adults aged 50 or older, to understand how these elements interact. They used various tests to measure cognitive performance, walking speed, grip strength, nutrition, sleep quality, depression, resilience, and happiness levels.
The findings were eye-opening. Out of 810 participants, a staggering 94.7% showed impairments in IC, with visual capacity and cognition being the most common deficits. Interestingly, resilience (the ability to bounce back from adversity) played a unique role, partially mediating the relationship between intrinsic capacity and happiness. In simpler terms, resilience contributed to about 6.6% of the variance in happiness, acting as a bridge between physical well-being and emotional contentment.
What does this mean for you? Understanding these connections can help individuals and healthcare providers focus on enhancing resilience and other key factors to promote not just longer life but a happier and healthier one. The study sheds light on the complex interplay between the body and mind, offering valuable insights that could shape the future of aging care.
Article Information
Arch Gerontol Geriatr. Zhi-Jun Chen et al.
The core of healthy aging is intrinsic capacity (IC) that consists of major elements, i.e., cognition, locomotion, vitality, sensory capacity, and psychological aspect. This cross-sectional study analyzes data of the Gan-Dau Healthy Longevity Plan, targeting community-dwelling adults aged 50 years or older. The participants completed the assessment, in addition to WHO IC, including the Mini-Mental Status Examination (MMSE) for cognitive performance, 6 m walking speed (m/s),timed up-and-go test (s) and hand grip strength (Kg) for locomotor assessment, Cardiovascular health study (CHS) for frailty assessment, Mini Nutrition assessment short form (MNA-SF) for nutrition. Psychological aspect including the Pittsburgh Sleep Quality Index (PSQI) for sleep quality, the Geriatric Depression Scale-5 (GDS-5) for depressive symptoms, the Brief Resilience Scale (BRS) for resilience, and the Chinese Happiness Inventory (CHI) for happiness levels. The study enrolled 810 participants (mean age of 68.45 ± 8.05 years, 32% male) and revealed that 94.7% of participants exhibited impairments in IC, with visual capacity and cognition being the most common deficit items of IC. Resilience levels varied, with 37.4% of men and 33.5% of women exhibiting moderate to low resilience. Only 23.4% of male participants and 21.1% female participants reported a high level of happiness. Resilience was found to partially mediate the relationship between intrinsic capacity and happiness, with approximately 6.6% of the variance in happiness being mediated by resilience. In conclusion, the study provides valuable insights into the connections between psychological aspect, IC, and healthy aging.