Drinking a cup of coffee before working out could improve peak performance, study claims 

Daily Mail

Researchers from the University of Coventry recruited 46 amateur cyclists who had trained one to three times a week for a year and had them track their coffee intake. https://www.dailymail.co.uk/sciencetech/article-9031487/Drinking-cup-coffee-working-improve-peak-performance-study-claims.html?ns_mchannel=rss&ns_campaign=1490&ito=1490