The 4-Hour Body - An Uncommon Guide to Rapid Fat-Loss, Incredible Sex, and Becoming Superhuman - Timothy Ferriss
that are so overused as to have no agreed-upon meaning:
Health
Fitness
Optimal
To eliminate words you shouldn't use in body redesign, the question to ask is: can I measure
it?
"I just want to be healthy" is not actionable. "I want to increase my HDL cholesterol and
improve my time for a one-mile jog (or walk)" is actionable. "Healthy" is subject to the fads
and regime du jour. Useless.
The word optimal is also bandied about with much fanfare. "Your progesterone might fall
within the normal range, but it's not optimal." The question here, seldom asked, should be:
optimal for what? Triathlon training? Extending lifespan 40%? Increasing bone density 20%?
Having sex three times a day?
"Optimal" depends entirely on what your goal is, and that goal should be numerically
precise. "Optimal" is usable, but only when the "for what" is clear.
If it isn't, treat optimal as Wikipedia would: a weasel word.