Compare the 6 best free internet speed test apps for 2026. Test Wi-Fi speed, latency, upload and download performance, and diagnose connection issues.

Microsoft is testing a Windows 11 speed test inside Quick Settings. Learn how it works, who can access it, and when it could reach more users.

Cortisol, also known as the stress hormone, plays a vital role in the body by maintaining blood pressure and blood sugar. It also breaks down carbohydrates, lipids (fats), and proteins. Cortisol can ...

At-home tests for a urinary tract infection (UTI) are convenient because they are easily available online or in drugstores without a prescription. A UTI applies to a range of infections affecting the ...

As the nation experiences what many experts believe is the second-largest wave of COVID infections since the pandemic started, many Americans will be checking to make sure they don’t have the ...

If you live with performance anxiety, taking a test can be overwhelming. But test anxiety can be managed and these tips may help. Test anxiety is a common form of performance anxiety, which can create ...

A false positive result is possible with a rapid COVID-19 test. It happens when a person does not have COVID-19 but still tests positive for the disease. People can use a rapid COVID-19 test at home ...

A polymerase chain reaction (PCR) test detects genetic material from a pathogen or abnormal cell sample. Ways of collecting samples include a nasal swab, a saliva swab, or taking a sample of blood.

Longevity isn't just about how long you live — it's also about staying healthy for as much of that time as possible. The "sit to stand" test can be a good way to figure out how healthy you are, and it ...

We regularly answer frequently asked questions about life during the coronavirus crisis. If you have a question you'd like us to consider for a future post, email us at goatsandsoda@npr.org with the ...