What Eﬀect Does Caﬀeine Have in the Body?
Caﬀeine is metabolized in the liver and has a half life of 3.5-5 hours (there is a large individual variation in how quickly we break down caﬀeine). This means that after 5 hours, half the original amount of caﬀeine consumed remains in the blood.
Structurally caﬀeine is very similar to adenosine, a compound that is very biologically active in the human body, meaning that caﬀeine can reach all cells and systems and interact in various ways, including energy production, hormone release, mobilization of fatty acids, dilation of blood vessels. Caﬀeine can also alter fuel use in some people, breaking down adipose tissue and mobilizing fatty acids to be burnt as energy.
How does caﬀeine help sports performance?
The primary way in which caﬀeine inﬂuences sports performance is through its eﬀect on the central nervous system (CNS) due to the ability of caﬀeine to cross the blood-brain barrier. Stimulation of the CNS leads to increased alertness, wakefulness and awareness as well as enhanced mood.
Can caﬀeine help reduce sorenesss and pain?
Caﬀeine can also have a pain reducing eﬀect, with the brain interpreting feedback from the muscles as less painful in relation to the workload.
What is the problem with Caffeine?
Strong ﬂavour masking needed
Consistent eﬀects can be problematic
Jitters and body disorientation
Adverse sensory aﬀects on various products