Sensitivity to caffeine varies among individuals. Some people can drink liters of coffee without trouble falling asleep, while others limit their consumption to late afternoon. What are the factors that can affect this sensitivity?
Caffeine from coffee, tea, cola or even caffeine is present in many widely consumed beverages. Its stimulating effects are not insignificant, with a form of individual sensitivity. On what basis? According toFrench Food Safety AgencyFrench Food Safety Agency (ANSES), caffeine works on our body. By counteracting the sedative effect due to the activation of certain receptors in the brain ».
It will therefore increase our alertness during the hours following its use, with potential effects on our sleep, delaying and reducing the time and/or quality of sleep. So much so that some people find that even a small drop of coffee after 5pm to 6pm severely affects their night.
Because the effects vary greatly from person to person. And for good reason, depending on the case, the metabolism of caffeine can be slowed down. Broadly speaking, this means that it will therefore stay in our body longer, resulting in enhanced effects. Various parameters can cause this slowdown, such as:
- Health conditions: Liver diseases, psychiatric diseases, High blood pressureHigh blood pressureUrinary and bowel incontinence and even ulcers – under certain conditions, caffeine metabolism is affected.
- Age: The authors show that older people eliminate caffeine from their bodies more slowly than younger people. The reason will be with some people. EnzymesEnzymes Of FoieFoie which metabolizes caffeine and which becomes less effective with age.
- Factors GeneticsGenetics : Studies have shown that genetic variations in – of the receptors ashamedashamed ADORA2A – may determine individual sensitivity to the effects of caffeine. to sleepto sleep.
Cafe Sigs, the evil couple!
As a smoker, it will also affect MetabolismMetabolism Caffeine, not by slowing it down, but by speeding it up. This time, A ProteinProtein CYP1A2 name will be included. Incidentally, studies report a correlation between cigarette consumption and coffee consumption: when the former increases, so does the latter!
In all cases, as Dr. Elizabeth Coe suggests, Eve Glazier of University College of San Francisco (UCLA), « lAs a person becomes sensitive to caffeine, it may be necessary to revise their intake to avoid unwanted effects. To manage caffeine sensitivity, try to limit yourself to one cup per day. ».
