"A study published July 25 based on examinations of brains of deceased NFL players reported disturbing news about the prevalence of concussions. Of 111 brains examined, all but one were found to have chronic traumatic encephalopathy, or CTE, the degenerative brain disease caused by repeated blows to the head."

"The brain is a glucose hungry organ. It weighs about 2% of body mass but demands about 20% of our resting energy requirements, which is mostly in the form of glucose, the primary brain fuel. If this energy supply is disrupted it can impair and even damage brain cells. Therefore, the availability of glucose to brain cells may have implications for brain health."

"We define trolling as deceptive and disruptive online behaviour, which typically involves posting inflammatory and malicious comments to deliberately provoke and upset people."