Social isolation, disrupted sleep patterns, and chronic stress are the most significant overlooked factors in healthy aging, according to a survey of 63 health experts conducted by U.S. News. The survey also found that while wearable health trackers are favored, many biohacking tools generate more anxiety than tangible health benefits.
Experts identified social isolation as the primary blind spot, with 59% of respondents highlighting its impact on health. Valter Longo, a professor at USC and director of the USC Longevity Institute, stated that isolation inevitably leads to medical problems. Researchers have identified loneliness as a public health threat, particularly for older adults, as it can erode purpose, disturb mental health, compound stress, and sabotage sleep.
Key Factors in Healthy Aging
The second most underappreciated factor was circadian disruption, accounting for 19% of expert opinions. Poor sleep, with a recommended nightly range of 6.4 to 7.8 hours, is linked to aging. A disrupted circadian cycle, characterized by frequent awakenings, can increase a person's biological age.
Low-grade, unmanaged psychological stress was cited as the third major concern by 18% of the health experts. Chronic stress is associated with an increased risk of dementia, weakened immune systems, digestive issues, and a higher likelihood of heart attack and stroke.
Longevity Tools: Expert Verdict
When asked about the effectiveness of biohacking tools for longevity, wearable health and sleep trackers, such as the Apple Watch and Oura ring, received the most positive ratings. However, a significant portion of participants, 31%, chose "none of the above," suggesting that many other trending tools create more health anxiety than clinical benefit.
Intermittent fasting was endorsed by 26% of experts, while 16% approved of full-body imaging or wearing a continuous glucose monitor (CGM) for non-diabetic individuals. Endocrinologists and internists have expressed skepticism about the utility of CGMs for those without diabetes, noting that they can cause anxiety over normal glucose fluctuations and that there is limited evidence of improved long-term health outcomes.
Experts emphasized that while data from wearable devices can be informative, the mere ability to measure something does not necessitate its use, and more data is not always better for health outcomes.