Jeremy Laurance: Mild uppers and downers unlikely to explain lacklustre performance next day
Jeremy Laurance is a writer on health issues. He is former health editor of The Independent and the i and has covered the specialism for more than 20 years. He thinks the harm medicine does is under-appreciated, the harm it prevents over-rated, and that cycling works better than most drugs. He was named Specialist Journalist of the Year in the 2011 British Press Awards.
Friday 19 October 2012
Caffeine is the world's most widely used performance-enhancing drug. Sportsmen and women use it, students use it, long-distance drivers use it. "Nature's stimulant" improves short-term memory, boosts muscle power and increases alertness. An average cup of filter coffee contains 100mg of caffeine and millions are drunk each day. It is also in tea, cola and chocolate.
The England team could have opted for a strong sup of coffee before the original Poland match on Tuesday. Instead, some are said to have taken ProPlus pills, which contain 50mg of caffeine each. The instructions say take one or two with water and no more than two in any hour – but users tend to ignore instructions. As every coffee drinker knows, a strong brew drunk in the evening is liable to disturb sleep. The same goes for ProPlus pills. If the England footballers had played and ended their game as scheduled at 10pm there would have been no harm done. With them fired up after the match and adrenalin levels high, sleep would probably have been a distant prospect anyway.
With the game postponed but the caffeine already surging round their system, at least one player apparently turned to sleeping pills to come down again. The combination is unlikely to have done any harm – some clubbers enjoy its zombie effect – but it is not to be recommended on a regular basis.
Could this have explained the lacklustre showing the following day? Unlikely. Chronic lack of sleep does damage performance but a single bad night would be unlikely to do so.
Modern sleeping pills have a short half-life – meaning they are rapidly metabolised by the body, leaving no after-effects next morning. In older people there may be a hangover but young, fit footballers should wake from a pill-induced sleep fresh, alert and ready to go.
Latest in Sport
Gareth Bale to Manchester United: Louis van Gaal has made 'two £100m bids this summer'
Jose Mourinho-Arsene Wenger feud is not sporting, but keeps alive raw spirit of competition - Sam Wallace
Pedro to Manchester United: Transfer news live - Angel Di Maria to PSG, John Stones to Chelsea, £100m Gareth Bale bid
Premier League 2015/16 preview: Club-by-club guide to the new season
Manchester United transfer news: Victor Valdes moved to U21 dressing room as exit looms
- 1 Edward Heath 'raped 12 year-old boy at Mayfair flat'
- 2 Sabrina Corgatelli: US hunting tourist posts picture of herself with dead giraffe after Cecil the lion outrage
- 3 Porn block in India: hundreds of sexual websites banned, internet outraged
- 4 Gwen Stefani and Gavin Rossdale divorce: One of music industry’s most enduring couples announce split after 12 years of marriage
- 5 A-level results 2015: UK exam board OCR admits it 'estimates' hundreds of pupils' grades after papers 'go missing'
Is Britain really full up? Are migrants taking our jobs? Leading academic answers the most common anti-immigration claims
Calais Migrant Crisis: Deputy Mayor of Calais labels Cameron's use of 'swarm' as 'racist' and 'ignorant'
Chris Leslie: Jeremy Corbyn's anti-austerity agenda will harm the poor, says Labour shadow Chancellor
Landlords renting properties to illegal immigrants to face up to five years in prison
While we fixate on Calais, the Home Office is quietly deporting dozens of migrants on 'ghost flights'
Calais crisis: The seven claims made about the migrants - and the reality