Marijuana is now legal in many places, but is it safe? Two new studies add to mounting evidence that people who use cannabis are more likely to suffer a heart attack than people who do not use the ...

Only around 1 in 10 common non-surgical and non-invasive treatments for lower back pain is effective, suggests a pooled data analysis of the available research, published online in BMJ Evidence Based ...

The pooled standard deviation is the way to go. Let’s see how. The definition of the standard deviation is the average distance each data point is away from the mean of the data. It is a measure ...

Resistance or muscle-strengthening exercise, using weights or the body itself, may be the best type of exercise for tackling insomnia in older age, suggests a pooled data analysis of the available ...