10/08/2016
Linking to the previous posts point of 'how far is too far' in the world of doping, I have made a piece on caffeine which explores the science behind this day-to-day substance. Here are some points to consider:
- Caffeine and dopamine (neurotransmitter), working together, acts to switch off the pathways that limit motor activation signals to the brain= better performance.
- when it comes to running or cycling, (post 5 mins), caffeine can increase the time to exhaustion by as much as 25%.
- Caffeine does not affect adrenaline levels, unlike amphetamines; it affects adenosine (messenger molecule). Adenosine normally prevents exercise from continuing. Caffeine stops it from doing this= better performance.
Caffeine was previously banned until 2004, but how useful would it be banning (in professional sport) a substance so much a part of our day-to-day diet..... and at what level would be acceptable to do so....?