It may seem like we are living in an age of anxiety, where feeling worried, upset and stressed has become the norm. But we should remember that anxiety is a natural human response to situations.

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.

Britain was the first country in the world to start a welfare charity for animals, as early as 1824. Now, almost 20m cats and dogs have a loving place in the country’s homes, and almost one in two households is accompanied by a furry, scaly, or feathered friend.

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

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.

An amino acid called asparagine is key to breast cancer’s spread, report researchers who found that by restricting it in mice, they could stop cancer cells from invading other parts of the body.

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.

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

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.

Most Americans have never heard of it, but according to recent federal data, sepsis is the most expensive cause of hospitalization in the U.S., and is now the most common cause of ICU admission among older Americans.

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.

When most people think of the word “virus,” they often relate it to infections or diseases. The sole purpose of a virus is to attack and infect a normal cell, use it to replicate, and then kill it.

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

Sarah lives in London. She is pregnant with her first child. Her mother had gestational diabetes and Sarah is told this puts her into a higher risk category for the condition, thus she should have a test.

Yoga and breathing exercises improve symptoms of depression and anxiety in the short term and cumulatively in the longer term, new research suggests.

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.