Current estimates suggest that addictions affect one-third of the population in the United States. Of course, when most of us hear the word addict, we think crack, or cocaine, or heroin... Certainly we don't think about, say, sugar -- and yet sugar is the most prevalent addictive substance in the world!

Migraine is the third most prevalent illness in the world and causes suffering for tens of millions of people. In fact, nearly 1 in 4 U.S. household includes someone with migraines.

Many of our diets are, to some extent, determined by the whims of fashion. This is not an astute observation, nor a particularly new one – just consider the 1970s obsession with pineapple and quiche.

Parkinson’s disease is the second-most-prevalent neurodegenerative condition in Australia, with an estimated 70,000 Australians living with the disease.

Getting five or fewer hours of sleep a night is associated with low bone mineral density and higher odds of osteoporosis, researchers report.

We love sweet treats. But too much sugar in our diets can lead to weight gain and obesity, Type 2 diabetes and dental decay.

That weary feeling that sets in with an illness is an emotion that helps you fight off infection, researchers say.

There is a cultural shame that is implied when an individual has the need for too much sleep or feels tired without having a good reason. You have thoughts such as God, I don't know why I'm so tired! or What's wrong with me? And these very thoughts and attitudes negate a simple, natural flow...

More American adults are trying to lose weight these days, but the average body mass index of Americans has increased, research finds.

A federal jury in California has unanimously decided that the weedkiller Roundup was a “substantial factor” in causing the lymphoma of 70-year-old Edwin Hardeman, who had used Roundup on his property for many years.

Post-traumatic stress disorder (PTSD), a psychiatric condition linked to surviving or witnessing a traumatic life event, will affect around one in 10 Canadians at some point in their lives.

Exercise is recommended for people who are overweight or obese as a way to reduce their risk of developing type 2 diabetes and cardiovascular disease

Monique is 77 years old. I met her when she came to the eye clinic at the University of Montréal, where I am a professor.

About 7.4 million people in the U.S. require manufactured insulin to stay alive. I’m one of them. I’ve lived with Type 1 diabetes for over 15 years and inject two kinds of insulin every day.

Humanity’s defences against infection are wearing thinner by the day, and the microbes responsible are getting stronger.

Parkinson’s disease is a progressive neurodegenerative disorder affecting one in 350 Australians.

It’s free, requires no equipment and the scenery can be stunning – it’s no wonder running is among the world’s most popular sports.

For many young people, the toughest choice they will ever have to make about food is what to eat at home or what to choose from a menu.

When you hear the word “cancer” probably the last thing that you think of is physical activity.

What’s the first thing that comes to mind when you hear the term “post-traumatic stress disorder”?

For generations, the members of a family in Colombia have gotten early-onset Alzheimer’s disease. How one woman has resisted it could lead to future therapies, researchers say.

While the condition is often associated with older adults, rising childhood inactivity and poor fitness levels mean that the risk factors associated with heart disease are more common among teenagers than most people think.

Whether you need to take a drug at a specific time of day depends on the medication and the condition you are treating.