This is one of those subjects where people argue past each "I can drink a cup of coffee and sleep like a baby!" vs "One cup of coffee in the morning and my sleep quality is impacted". And neither understands how the other can have a vastly different personal experience.
This extends to any online discussion regarding weight loss/gain, politics, wars, etc.
"CYP1A2 Gene: Fast or Slow Caffeine Metabolizer?"
https://www.geneticlifehacks.com/liver-detox-genes-cyp1a2/
This is one of those subjects where people argue past each "I can drink a cup of coffee and sleep like a baby!" vs "One cup of coffee in the morning and my sleep quality is impacted". And neither understands how the other can have a vastly different personal experience.
This extends to any online discussion regarding weight loss/gain, politics, wars, etc.