Longevity and wearables

Learn what wearable trends can—and cannot—say about fitness, health, and biological age.

5 guides

• What Your Grip Strength Says About Your Longevity

  Grip strength is one of the strongest predictors of all-cause mortality — more powerful than blood pressure in some studies. Here's what the research says and how to measure yours.

• Biological Age Metrics: what they can tell you (and what they cannot)

  Longevity scores can be motivating - or misleading. Use them as a direction, not a verdict.

• Hydration & Electrolytes: Why “drink more water” is incomplete advice

  Hydration is balance. Here is how to tell when you need water, salt, or both - without guesswork.

• How to take creatine: benefits, dosage, timing, and myths

  Creatine monohydrate is one of the most studied supplements for strength and performance. Here’s the simple protocol (3–5g/day), what to expect, and what the evidence says about safety.

• How much protein per day? (calculator + examples)

  A practical protein target by body weight and goal. Use g/kg ranges, simple per-meal rules, and a quick table to hit your number without overthinking it.