Many people in the UK find that their morning coffee feels different as they get older. That once-essential pick-me-up can start to cause unwanted jitters or anxiety. This common experience is due to significant changes in how our bodies process caffeine over time.
The Science Behind Caffeine Sensitivity
The primary reason for this shift is a natural slowdown in our metabolism. As we age, our liver becomes less efficient at breaking down compounds, including caffeine. The process is heavily influenced by a specific liver enzyme known as CYP1A2.
Your genetic makeup plays a crucial role here, determining whether you are a 'fast' or 'slow' metaboliser of caffeine. This genetic predisposition means that some people will feel the effects of caffeine more intensely and for a longer duration than others, especially as they get older.
Hormonal Influences on Caffeine Metabolism
Hormonal changes can further complicate how your body handles caffeine. For women, stages like perimenopause can significantly slow down caffeine metabolism. Similarly, taking oral contraceptives has been shown to have the same slowing effect, intensifying caffeine's impact on the body.
It is important to understand that this increased sensitivity is a physiological change. This heightened sensitivity cannot be reversed, as it is a natural part of the ageing process.
Managing Your Caffeine Consumption
While you cannot change your body's response, you can adapt your habits to manage the symptoms effectively. Experts recommend several strategies:
- Gradually reduce your overall caffeine intake instead of stopping abruptly.
- Space out your consumption throughout the day rather than having it all at once.
- Avoid drinking caffeinated beverages in the late afternoon or evening to prevent sleep disruption.
- Consider switching to decaffeinated alternatives for some of your usual drinks.
By being mindful of these changes and adjusting your routine, you can continue to enjoy your favourite drinks without the negative side effects.
