
Stool color: When to worry - Mayo Clinic
Oct 10, 2024 · Stool comes in a range of colors. All shades of brown and even green are considered typical. Only rarely does stool color indicate a possibly serious intestinal condition. …
Ejection fraction: An important heart test - Mayo Clinic
Jan 29, 2025 · Ejection fraction is a measurement of the percentage of blood leaving the heart each time it squeezes. When the heart squeezes, it's called a contraction. Ejection fraction is …
Menstrual cycle: What's normal, what's not - Mayo Clinic
Apr 22, 2023 · Learn about how to track your menstrual cycles and what any changes may mean.
Cholesterol ratio or non-HDL cholesterol: Which is most important?
Jan 12, 2024 · For predicting your risk of heart disease, many healthcare professionals now believe that determining your non-HDL cholesterol level may be more useful than calculating …
C-reactive protein test - Mayo Clinic
Jan 23, 2025 · C-reactive protein, also called CRP, is a protein made by the liver. The level of CRP increases when there's inflammation in the body. A simple blood test can check your C …
Aging: What to expect - Mayo Clinic
Nov 1, 2024 · Aging: What to expect Wonder what's considered a natural part of the aging process? Here's what to expect as you get older — and what you can do about it. By Mayo …
Blood pressure chart: What your reading means - Mayo Clinic
Dec 24, 2025 · Ideal blood pressure is categorized as normal. Increased blood pressure may be categorized as elevated, stage 1 or stage 2 depending on the specific numbers. A diagnosis of …
Hyponatremia - Symptoms and causes - Mayo Clinic
Jul 18, 2025 · Hyponatremia is the term used when your blood sodium is too low. Learn about symptoms, causes and treatment of this potentially dangerous condition.
High cholesterol - Symptoms and causes - Mayo Clinic
Mar 7, 2025 · High cholesterol can be inherited. That means it can pass from parents to children through genes. But high cholesterol often is the result of lifestyle choices such as not getting …
High blood pressure (hypertension) - Mayo Clinic
Feb 29, 2024 · Hypertension can be diagnosed by performing careful and repeated measures of the blood pressure. Blood pressure categories include normal blood pressure, defined as a …