CNN Health

Trenton Lewis' workers took up a collection to buy their determined colleague a car.

An Ohio court will decide the fate of a transgender teen who is in what the judge describes as a "gut-wrenching situation."

An Ohio court will decide the fate of a transgender teen who is in what the judge describes as a "gut-wrenching situation."

At least three neuropsychiatric disorders -- autism, schizophrenia and bipolar disorder -- appear to share similar patterns of gene activity, a new study suggests.

At least three neuropsychiatric disorders -- autism, schizophrenia and bipolar disorder -- appear to share similar patterns of gene activity, a new study suggests.

Kidney stones may be increasing among both men and women in the US, a new study says.

Kidney stones may be increasing among both men and women in the US, a new study says.

A new report alleges that five of the United States' largest opioid manufacturers paid patient advocacy groups nearly $9 million between 2012 and 2017 to help push an agenda that promoted opioid use.

A new report alleges that five of the United States' largest opioid manufacturers paid patient advocacy groups nearly $9 million between 2012 and 2017 to help push an agenda that promoted opioid use.

Some parents are boycotting the "Peter Rabbit" movie for a scene that they say depicts "food allergy bullying." Sony has issued an apology in response to parents' concerns, stating that "food allergies are a serious issue."

Some parents are boycotting the "Peter Rabbit" movie for a scene that they say depicts "food allergy bullying." Sony has issued an apology in response to parents' concerns, stating that "food allergies are a serious issue."

Ultrasound exams during pregnancy are common. And researchers have now looked at whether a diagnosis of autism spectrum disorder is more likely among children exposed to this technology in the womb.

Ultrasound exams during pregnancy are common. And researchers have now looked at whether a diagnosis of autism spectrum disorder is more likely among children exposed to this technology in the womb.

Successful treatment of overweight and obesity in most adults is as easy and difficult as maintaining recommended diet and physical activity.

Antonio Todde was the first man in the world to live to 110, and he resided in Tiana, a village on the Italian island of Sardinia.

For athletes of all levels, endurance -- how long they can keep going at their chosen sport -- is made up of physiological and psychological factors. Physiological factors include cardiovascular fitness, and how efficient an athlete is at using energy (their "movement economy"). A critical psychological factor, on the other hand, is perceived effort, or how hard we feel we are working during an activity. The lower our perceived effort, the easier we feel that an activity is.

For athletes of all levels, endurance -- how long they can keep going at their chosen sport -- is made up of physiological and psychological factors. Physiological factors include cardiovascular fitness, and how efficient an athlete is at using energy (their "movement economy"). A critical psychological factor, on the other hand, is perceived effort, or how hard we feel we are working during an activity. The lower our perceived effort, the easier we feel that an activity is.

It starts with an uncomfortable pressure gripping the center of your chest. A sharp pain shoots through your arms, neck and jaw. Your breath starts to shorten; you feel a growing urge to vomit.