Lindsay Modglin is a nurse and professional writer who regularly writes about complex medical topics, as well as travel and the great outdoors. She holds a professional certificate in scientific ...

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 ...

For adults, a typical level of vitamin D in the blood is 20 nanograms per milliliter (ng/ml) or above. Levels of 12 ng/ml are too low and levels of 50 ng/ml are too high. High or low levels may affect ...

What are normal testosterone levels by age? An older photographer mentors a younger one. Testosterone is an important hormone. It helps men develop during puberty, and as they age, it plays a critical ...

Does Running Exacerbate or Help with PCOS? “For runners especially, I encourage them to get blood work done at least before they start a training cycle, just to make sure there isn’t anything going on ...

Wendy Wisner is a journalist and international board certified lactation consultant (IBCLC). She has written about all things pregnancy, maternal/child health, parenting, and general health and ...

Dear Dr. Roach: All my friends who are hypertensive have been able to bring their blood pressure to 120/80 or less. However, I have diabetic friends who are taking several diabetic drugs but none has ...

Dr Mezher notes that pain is a highly individual experience, shaped by a person’s life history and any underlying chronic conditions. While the ideal pain level is zero, the doctor highlights that it ...