Two cricketers suffer concussions in Indo-Bangladesh match: Here's why ICC has special concussion guidelines
A concussion is a traumatic brain injury caused by a blow to the head. Violent whiplash or shaking of the head can also cause a concussion.
Earlier this week, The Lancet published research that shows that Tranexamic acid helps to form blood clots after a traumatic brain injury.
ISL 2018: FC Pune City's Iain Hume says knee injury's worse than 'freak' head accident sustained in 2008
FC Pune City striker Iain Hume talks to Firstpost about his head injury a decade ago which left him with an 18-inch scar, his current knee injury and his dejection at being not handed a contract by Kerala Blasters FC.
Singh, who was in coma, had been on life support system all this while.
Phillip Hughes died in a Sydney hospital on Thursday, two days after being struck on the head by a cricket ball during a domestic first-class match.
Phil Hughes, who died on Thursday aged 25, will forever be remembered as one of Australian cricket's free spirits.
Australian cricketer Phillip Hughes died in hospital on Thursday, two days after the batsman was struck on the head by a ball during a domestic match.
According to previous reports, Hughes was wearing an older model helmet when he suffered a serious head injury on Tuesday.
Former senior BJP leader and former cabinet minister Jaswant Singh was in coma and in "a highly critical" condition.