Physiologist Mike Tipton told Reuters on Thursday that players are at risk of heat stroke.
Temperatures are expected to top 30 °C (86 Fahrenheit) in Doha,
1
Wells rescheduled his training sessions for Thursday, moving from afternoon to evening when the weather turned cooler.
2
Qatar is unusually hot and humid for this time of year, but as of November, the weather is expected to cool off.
3
Tipton said that to deal with the heat, managers may be forced to change their teams' playing styles, opting for a much slower pace of play.
4
“They (the effects) range from feeling faint due to being unable to exercise to a heat stroke, which is a serious medical condition,” Tipton said.
5
"It's better to play football in 20 degree wind than 30 degree wind. There's no doubt about it," Tipton said.
6
"We were sweating just walking around the hotel," Wales forward Mark Harris told reporters. "We went out for a walk this morning at about 11 and it was very warm."
7
"There's another factor, which is that when people overheat, they make poorer decisions... They may decide to exercise even harder, which can exacerbate their problems with the heat. "
8
However, the players can get some respite on match days as all eight host stadiums have air conditioning.