Many runners analyze every aspect of their performance to find and fix the smallest faults. And expert guidance often centers around correction—how to fix bad form, poor pacing, or other bad habits ...

Missing the occasional workout causes many runners stress. 'Often, I find [runners] think it means that they’re not training ...

Javascript must be enabled to use this site. Please enable Javascript in your browser and try again. What key factors should you consider before filing for Social ...

Falling asleep in less than five minutes can signal an unhealthy level of sleepiness. Sleep apnea, restless legs syndrome, or narcolepsy can cause this type of excessive sleepiness. Some people can ...

Understand your real health beyond weight. Key fitness benchmarks include resting heart rate, VO2 max, grip strength, ...

If you have built a new computer and wanted to test it, or if you need to identify hardware faults on your existing system, you will want to consider subjecting your computer to a PC Stress Test. A PC ...

Test your broadband connection speed. Our speedtest works on the vast majority of web browsers and devices, including computers, tablets, phones and games consoles. If you are experiencing ...

An office breathing test typically means you blow into a machine that measures how much air your lungs can take in and how quickly and forcefully you can blow it out. These numbers tell your doctor if ...

Adam Hayes, Ph.D., CFA, is a financial writer with 15+ years Wall Street experience as a derivatives trader. Besides his extensive derivative trading expertise, Adam is an expert in economics and ...

What Is an Anion Gap? The anion gap test measures anion gap (sometimes called serum anion gap) or how much acid is in your blood. Acid levels that are higher or lower than normal can tip your doctor ...

Psychology Today's online self-tests are intended for informational purposes only and are not diagnostic tools. Psychology Today does not capture or store personally identifiable information, and your ...