Longevity research is finding that certain biomarkers can signal disease years before symptoms appear. Here are five metrics worth tracking.
1. Grip Strength
Grip strength is defined as the force exerted by the muscles in your hand and forearm when you squeeze. Grip strength can reveal overall health, cognitive impairment, and all-cause mortality risk.
2. Resting Heart Rate
A higher resting heart rate is an independent risk factor for mortality, as it can be elevated for various reasons, including diabetes, cardiovascular disease, chronic obstructive pulmonary disease, and many other chronic conditions.
3. Waist-to-Height Ratio
Visceral fat—the fat that accumulates around our internal organs—is far more dangerous than fat stored elsewhere. It is strongly associated with inflammation, insulin resistance, cardiovascular disease, and premature death.
4. Cortisol
Cortisol is a steroid hormone released in response to physical and emotional stress. In short bursts, it sharpens focus and provides energy, but when cortisol levels are chronically high or poorly regulated, they can cause long-term wear and tear on the body.
5. Nutrient Deficiencies
Nutrition is often overshadowed by factors such as sleep or exercise when discussing longevity, but deficiencies in vital nutrients—including vitamins, minerals, and essential fatty acids—can make us more susceptible to disease, age us prematurely, and even shorten our lives.
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