CNN Health

From family picnics to camping trips, summer is the time when we invade insect territory. And the bugs are ready for us: fleas, ticks and mosquitoes all thrive in warmer months.

Independence Day is often celebrated with delicious food, family get-togethers and Fourth of July fireworks that light up the night.

A group of hikers were 500 feet below the summit of a Colorado mountain on Sunday when storm clouds suddenly filled the sky.

"This is a song about the high school experience, sung through the eyes of the person who -- more than anyone else -- puts young people on the right path," said Adam Sandler in a 1994 Saturday Night Live sketch. "I'm not talking about the teachers. I'm not talking about the coaches. I'm not even talking about the guidance counselors. I'm talking about a person we call the lunch lady."

Dr. Sanjay Gupta explains how marijuana affects the brain and how pot can be used to treat certain conditions.

Late one night on Facebook, a girl with cystic fibrosis messaged a boy with cystic fibrosis, and both their lives were changed forever.

Angelina Jolie's decision to remove her breasts and ovaries to prevent cancer (as she detailed in today's New York Times op-ed) might sound extreme, but breast cancer experts say she was spot on.

The public health benefits of barring people under age 21 from buying cigarettes could be tremendous, including "4.2 million fewer years of life lost" among the next generation of American adults, according to a report released in March by the Institute of Medicine.

"Hey dude -- can you turn your music down?"

As globalization continues to grow and dominate our trade, economy and lifestyles, the associated ease of access to remote regions of the world is reflected in our travels.

I am 17 years old and a senior in high school. I am also, like thousands of other people living on this planet, sick.

A respiratory virus called Enterovirus D68 has sent hundreds of children to the hospital. CNN's Elizabeth Cohen explains.

Four years ago Tom and Kari Whitehead knew nothing about the battle raging within their daughter's body.

"About 20" cases of a polio-like syndrome have been identified in California children over the past 18 months, a Stanford University researcher says.

When Galaxy Airlines Flight 203 with 71 passengers and crew crashed shortly after takeoff from Reno, Nevada, in 1985, there was only one survivor: George Lamson Jr.

Things aren't looking good for people with allergies in Tennessee. Not only is the pollen apocalypse on its way, three of the state's major cities made the Asthma and Allergy Foundation's annual list of the 10 worst places for spring allergy sufferers.

When Cesar Castillo's cancer returned for the second time, he fell apart.

I grew up in a place where the sun shone every day from May through October. These sun-drenched days were the happiest times of my life.

Parents worry a lot about fever, especially the ones that come from illness.