When medical-miracle stories seem too good to be true.

Lattes, cocktails, pastries, and more.

The sentiments expressed in tweets may be a more powerful predictor than all sorts of other "traditional" data.

Researchers say it would be better to squeeze all that information in that chunky box into one number.

Normal-weight 16-year-olds who believed they were overweight were 40 percent more likely to become obese before they turned 30.

So says a comprehensive new study.

But the disease could still make a comeback.

In a European study, the biggest gap in mortality risk was between "inactive" and "moderately inactive" folks.

There's only so long a person can pretend to be interested in counting to 10,000 steps. 

It's thanks to genetic good fortune. 

Sorry.

Men aged 45 to 54 are at the highest risk of death from alcohol poisoning.

Healthy today (probably) doesn't mean healthy tomorrow.

The power of encouragement. 

Because it's the time of year to think about such things.

Gay men will only be allowed to donate if they've been abstinent for a year.

It could mess up your sleep cycle.

Watching the darkness close in for years and years.

Hugs not cold drugs. 

If you take an extremely sympathetic view, the service almost makes sense, sort of, kind of.