Avoiding caffeine tolerance is a tough task for many people, Christ says, and it's not just about flat-out reducing your intake. Quitting cold turkey doesn't work for most people.

2. Caffeine may not affect you because you've built a tolerance You may also not feel a buzz from your morning cup of coffee because you've built up a tolerance.

Though caffeine is widely considered to be safe when consumed in moderation, per the Mayo Clinic, everyone has a unique tolerance for the stimulant. When consumed in excess, caffeine can be harmful.

The coffee sleep cycle Caffeine’s effects on adenosine receptors, a build-up of caffeine tolerance, and changes in blood sugars all contribute to why coffee makes us sleepy.

A dietitian shares tips for trying a caffeine tolerance reset if you're feeling like coffee not longer has any impact on your energy. In all sincerity, there are few things I love and cherish more ...

Tolerance can develop quickly, affecting mental alertness and performance, and may require increased caffeine intake to achieve the same effects. 3 However, reducing caffeine intake can help ...

That means caffeine tolerance can vary from person to person, and in general, says Cornelis, your body knows how much it needs. But that's not a blank check to consume as much as you want.

If caffeine does not affect you it may be due to your genetics, lack of sleep, or increased tolerance. To boost your energy without caffeine, try exercising, going outside, or eating a healthy snack.

Research suggests that consuming moderate amounts of caffeine can help you live longer. Harvard scientists tracked the midlife coffee, tea, cola and decaf coffee consumption of over 47,000 nurses.