Hours of Sleep by Age: What’s Normal and What’s Not?

Ever wonder if you’re getting the right amount of sleep for your age? Sleep needs shift throughout life, and what’s normal for a child or teen isn’t the same for an adult or older adult. Most healthy adults need about seven to nine hours of sleep each night, while children and teens need more to […]

What Are Average O₂ Saturation Levels and What’s Considered Normal? A Complete Guide

You may see oxygen numbers on a fingertip device or in a health report and wonder what they mean. We use oxygen saturation, also called SpO₂, to show how much oxygen your blood carries from your lungs to your body. We measure it as a percent, and small changes can matter. For most healthy people, […]