I’m not Elizabeth Holmes, nor do I know her, but if she says she doesn’t drink caffeine[1], I would have no reason to doubt her.
Caffeine is a migraine trigger for me. While I routinely work 80+ hours a week, and have done so for my entire career, I actively avoid caffeine (and have done my entire life.)
If I have soda at a restaurant or party, it’s probably going to be a Sprite or Root Beer. I often carry my own decaffeinated tea bags, and I hoard decaf coffee like it is going out of style. (I’m sure there are people on here who can attest to my accosting them for their hotel room Decaf K-Cups or pods at SxSW, KCDC or somewhere random.)
Not everyone needs coffee, or stimulants. I don’t use guarana, or ginseng, or anything like that – the closest I come is sugar, and even then I don’t do too much of that.
So, if Ms. Holmes is anything like me, she’s probably just used to existing without caffeine.
Footnotes
[1] One Woman “s Drive to Revolutionize Medical Testing – The New Yorker
Originally Posted: https://www.quora.com/Why-doesnt-Elizabeth-Holmes-intake-caffeine-while-Elon-Musk-drinks-ton-of-diet-coke-etc
Originally Posted On: 2016-01-18