We fish with them and they're good for our gardens; birds live off them and if you cut a part of their body off, it can still survive. What we're talking about here are worms. These slimy creatures are slithering through the cancer world to unearth new treatments.

Sleep quality affects every aspect of your life and your sleep patterns change throughout your life. Much is understood about sleep in young adults and the elderly, but not much is known about sleep patterns during the all important middle years, when people are typically focused on building their careers.

Two decades ago, Congress decided to crack down on illegal tobacco sales to minors. The 2011 report showed that federal and state efforts have really paid off.

Not everyone gains weight when they quit smoking but, unfortunately, about 84 percent do. Making the effort to not overeat for the first few months after quitting could help.

Men can have elevated PSA (prostate-specific antigen) levels, and later undergo a biopsy only to find out that they do not have prostate cancer. That's a problem with PSA tests - they don't distinguish between benign (non-cancerous) disease and prostate cancer.

Loneliness among older individuals can be a significant risk factor for health problems like cardiovascular disease, Alzheimer’s and even death.

Saying "thank you" is likely one of the earliest behaviors parents teach their children. If kids can maintain gratitude through adolescence, they may have better overall mental health.

As people grow old, they may start to have problems with memory, language, thinking and judgment. Some diseases may play a role in this loss of brain function known as cognitive impairment.

Gallbladder cancer is not a cancer you hear a lot about, being diagnosed in just less than 10,000 Americans every year. And one particular type of gallbladder cancer occurs in one percent of these patients - which is about 100 individuals.

Being obese and pregnant can carry a range of risks to the mother during pregnancy, but it also has consequences for her baby, in the short-term and the long-term.