When suffering from EH, it is best to spend time away from radiation first to increase the cognitive function and speed. Once this is obtained then any sport is good as long as there is no exposure. If this is not possible and vertigo and cognitive impairment is too much, then a very hot bath for two hours, then once out wrap up warm, drink a very hot pint of water. Wait 5 minutes then start excising, might be hard with the clothes but stay with it.