"Grays of Cambridge: History"Archived 6 July 2011 at the Wayback Machine – makers of rackets and founded in 1855 by Henry John Gray, the Champion rackets Player of England. "In those days, the rackets were made from one piece English ash, with a suede leather grip and natural gut. ... The 1980s witnessed a period of re-structuring and consolidation. The Cambridge rackets factory was forced to close in face of the move to graphite rackets, and production was moved to the Far East."
"Grays of Cambridge: History"Archived 6 July 2011 at the Wayback Machine – makers of rackets and founded in 1855 by Henry John Gray, the Champion rackets Player of England. "In those days, the rackets were made from one piece English ash, with a suede leather grip and natural gut. ... The 1980s witnessed a period of re-structuring and consolidation. The Cambridge rackets factory was forced to close in face of the move to graphite rackets, and production was moved to the Far East."
"Heart rate and metabolic response to competitive squash in veteran players: identification of risk factors for sudden cardiac death", European Heart Journal, Volume 10, Number 11, Pp. 1029–1035, abstract. Additionally, squash players are prone to injuries during the game and should do necessary stretching before and after.