What Is The Normal Oxygen Level By Age?

As we grow old, our bodies tend to produce less oxygen. The human body’s normal oxygen level tends to be around 95%. This is why it is crucial to maintain a healthy oxygen level by exercising and not smoking. This guest post will discuss the normal oxygen level by age and how you can maintain a healthy level. This post will look at the advantages of a healthy oxygen level and how it might improve overall health.

What is the oxygen level? How is it measured?

An oxygen level is simply a measure of how much oxygen is in the air we breathe. Normal oxygen levels vary depending on age, but the average oxygen level for adults aged 21 to 49 years is between 21 and 24% oxygen. The intermediate oxygen level for those aged 50 to 59 years is 24 to 28%. And for those aged 60 years or older, the average oxygen level is around 28 to 31%.

Oxygen levels vary by age, and it can be hard to determine the expected level for each person. Oxygen levels are measured using a method called a pulse oximeter. This small, portable device is inserted into a vein in a person’s arm and then sends readings to a computer. Normal oxygen varies by age and can be affected by a person’s activity levels and health. For most people, the average oxygen level should be between 88 and 100 per cent. If a person’s oxygen level is below 88%, they may experience problems with their blood vessels. If a person’s oxygen level is above 100%, they may experience issues with their brain and heart.

Importance of knowing the Oxygen Level

The normal oxygen level by age is essential because it can help you understand your baby’s health. Babies younger than one year old require more oxygen because their brains and nervous systems are still developing. Babies 1 to 6 months need more oxygen because their brains are growing and learning to walk and talk. Babies 6 to 12 months old need more oxygen because they are becoming mobile and exploring their world. 

Babies 12 to 24 months old need more oxygen because they are growing and developing rapidly. Infants 36 to 48 months old need more oxygen because they are growing and developing more rapidly, and their bones are hardening. Babies over 48 months old need more oxygen because they grow and develop more quickly. Their bones are hardening, and their organs are starting to grow.

What Happens When The Oxygen Level Falls Below A Certain Level?

Oxygen is needed for the smooth functioning of the human body, and at the time when it is absent, problems can arise. Usually, the oxygen level in the blood reaches a particular level and stays constant at that point. The normal oxygen level can be reduced due to the presence of some external factors or some injuries as well. Low oxygen levels can have a number of serious consequences for children, including:

  • Cognitive impairment
  • Inability to learn
  • Inability to focus
  • Low birth weight

There are quite a few health issues you can face with low oxygen levels.  Low oxygen levels can be caused by the following:

  • Heart disease
  • Obesity
  • Smoking
  • Inactivity
  • Low oxygen levels can be treated with the following:
  • Cardiovascular rehabilitation
  • Weight loss
  • Vigorous exercise
  • Medications
  • Oxygen supplementation

Health Risks Of Low Oxygen Levels

Low oxygen levels are a common problem in adults but can also occur in children. Low oxygen levels can have serious health consequences, including:

  • Heart disease
  • Strokes
  • Diabetes
  • Congestive heart failure
  • Pregnancy complications
  • Low oxygen levels can also lead to:
  • Cognitive decline
  • Dementia
  • Sleep problems
  • Depression
  • Losing weight


The compact, portable medical gadget known as a pulse oximeter is used to detect blood oxygen levels. Most frequently, doctors will utilize it to evaluate your blood oxygen levels swiftly. It is also used to track how well your body tolerates various medications. 

The only complicated part of the process is briefly clipping the pulse oximeter between any two fingers. The pulse oximeter’s screen displays the reading. SpO2, the percentage of blood saturated with oxygen, is used to measure blood oxygen levels. Ask Apollo is available 24*7. If there’s a health enquiry or any information needed for low oxygen levels, you can get it easily from Ask Apollo. The doctors out there are open for guidance on the treatments needed. Check out the site and book the services at your convenience!