The Optimization JournalEvidence-Based Health · Performance · Longevity
Topic

Fitness & Recovery

Training, recovery, and nutrition — for athletes and weekend golfers alike.

Fitness & Recovery

Time Under Tension, Training Frequency, and Proximity to Failure: What the Meta-Analyses Actually Show

Slow reps, training a muscle more often, and grinding out that last brutal rep are all popular advice — but the actual meta-analyses on each one tell a more forgiving story than gym culture usually lets on.

5 min readJun 24, 2026
Fitness & Recovery

Hydration Done Right: What to Look for in an Electrolyte Powder, and Why Plain Water Isn't Always Enough

Plain water has a real, well-documented failure mode during heavy sweating or endurance exercise. Here's what actually happens, what to look for in an electrolyte powder, and a practical rule of thumb for daily water intake.

6 min readJun 17, 2026
Fitness & Recovery

How Many Sets, How Many Reps: What the Research Says About Building vs. Maintaining Muscle

The volume and rep-range research has gotten specific enough to answer two very different questions well: how much do you need to actually build muscle, and how little can you get away with just to keep what you've built?

5 min readJun 13, 2026
Fitness & Recovery

Recovery for Weekend Golfers: Mobility Work That Actually Moves the Needle

Thoracic rotation and hip mobility determine both your swing and your Monday morning. Here's the mobility work that actually matters, plus what the research says about the gym exercises that genuinely add clubhead speed.

5 min readMay 28, 2026
Fitness & Recovery

Zone 2 Training Explained

Zone 2 gets credited with burning fat better than any other intensity — and for good physiological reason. But "burns more fat during the workout" and "makes you lose more weight" are different claims, and the research draws a clear line between them.

5 min readMay 23, 2026