Sarah is an experienced writer and editor enthusiastic about helping readers live their healthiest and happiest lives. Before joining Forbes Health, Sarah worked as a writer for various digital ...

This article was reviewed by Felix Gussone, MD. If you’ve been feeling a bit more couch potato than go-getter lately, dragging through the day, snapping at people for no reason, or wondering where ...

As a lifelong health and fitness enthusiast with 15 years of experience, Rachel MacPherson is passionate about cutting through fads and noise. Her aim is to clearly communicate health information with ...

Testosterone is an important hormone. It helps men develop during puberty, and as they age, it plays a critical role in helping control fat levels, cholesterol, and glucose levels. Testosterone ...

Total cholesterol levels of 125-200 mg/dL are optimal for heart health. Genetics, diet, activity levels, smoking, and excessive drinking can affect your cholesterol levels. Regular exercise and a ...

Blood oxygen levels refer to the amount of oxygen circulating in the blood. Normal blood oxygen levels fall between 75 and 100 millimeters of mercury (mm Hg) on arterial blood gas (ABG) test results.

You have just taken a pregnancy test, and congratulations, it is positive. Now the gynaecologist recommends a blood test to ...

Having creatinine levels in your blood above 1.2 mg/dL for males and 1.0 mg/dL for females may indicate a potential issue with your kidneys, such as an infection or kidney disease. Creatinine is a ...