Twenty percent of strokes hit people under age 65, and the cause of many of those strokes remains a mystery. Having had a concussion or other traumatic brain injury might make the risk of a stroke more likely, a study says.
Back in 2011, researchers in Taiwan had unearthed an association between traumatic brain injury and stroke by combing through hospital records.
It's one of those "Oh, really?" findings that gets scientists itching to check it out themselves.
For the first time in years, a state has acted to allow its citizens to purchase prescription drugs by mail from other countries. The idea is to take advantage of those nations' lower prices, which can be half the cost of those at American pharmacies.
Nitrous oxide was one of the first chemicals used to make surgery and tooth-pulling painless. Back in the 1840s, Horace Wells, a dentist in Hartford, Conn., did his best to popularize it as an anesthetic agent. Despite some failed demonstrations early on, use of the gas during surgery eventually became routine.