Within the next year, 95 percent of the cells in your body will die and be replaced. In just 365 days, your body rebuilds itself into something better (or worse), depending on how well you treat it.
Also, this goes to show that you are what you eat and that almost every cell in your body eventually dies and is replaced by new cells from the food that you eat. Every day is a new opportunity to build a new body, so why not start today?
You could rebuild your body on processed foods, pies, cakes, and pastries and frozen dinners or canned and boxed foods or you could rebuild your body with fresh, whole fruit and vegetables, nuts and seeds, legumes and grains. If you really wish you feel your optimal best, you would opt for the latter and provide your body with what it needs, instead of with foods that don’t truly nourish the body.
It is also necessary to note that fresh fruit and vegetables will improve cell regeneration and infuse the body with beneficial vitamins, minerals, and antioxidants, all of which help us live longer, happier lives. The Standard American Diet will simply dig you an early grave, and we all know that isn’t much fun.
So, without further adieu, here is how long it takes different organs and cells to regenerate:
1. Blood – 4 months
Our blood is mainly made of the fluid called plasma, which is basically water with clotting factors. The rest of the blood consists of red blood cells, white blood cells, and platelets. The average lifespan of red blood cells is around 115 days, while white blood cells’ life span depends on the type, ranging from 24 hours to years. Platelets, on the other hand, last around 8 to 9 days. Due to the tremendous number of cells needed for our blood to work, the bone marrow replenishes these at a continuous pace.
2. Skin – 1 month
The outer layer of our skin is designed so as to be shed off and replaced. This keeps our skin in a state of constant repair, maintaining its ability to serve as a barrier to the outside world. Our skin keeps up with the job of protecting us by replenishing itself once every 2 to 4 weeks.
3. Liver – 6 weeks
Our liver is one of the hardest working organs in our body. It detoxifies our blood, produces clotting factors, aids in our digestion, metabolizes medications, and helps in the regulation of carbohydrate, fat, and protein metabolism. The liver completely rebuilds itself in just six weeks. This isn’t surprising, however, given how many toxins it processes in a lifetime. If the liver didn’t rebuild itself every 6 weeks, we probably wouldn’t be living very long lives.
4. Stomach and intestines – 5 days
Our digestive system is exposed to the harsh substances our body can produce. This includes hydrochloric acid and digestive enzymes. For our system to cope with such strong substances it has to regenerate at a fast pace. The turnover time for these cells is around 2-5 days.
5. Bones – 3 months
Our bones may seem completely static and unchanged when we reach adulthood since we hardly notice any growth from the outside. However, inside our body, it’s a whole different story. Our bones are made up of cells that constantly replenish the structure needed to make our skeletal system sturdy. This constant bone remodeling replaces old bone tissue with new tissue over the course of around 2-3 months. That’s also usually the time it takes for a broken bone to repair itself. Unfortunately, as we grow older, the turnover time begins to take longer. This results in the slowly increasing brittling of the bones seen in the elderly.
6. Lungs – 3 weeks
An average person takes a breath around 30,000 times a day. Given that astounding number, you can just imagine the wear and tear our lungs face on a daily basis. Lucky for us our lungs regenerate every 2 to 3 weeks.
7. Brain – 1 year
Brain cells typically last an entire lifetime, although there is a process called neurogenesis, which has been documented in 3 areas of the cerebral cortex, whereby new nerve cells are created. For almost a century, scientists have believed that human brains do not regenerate or add new neurons after maturation, however, in recent years, scientists have slowly been discovering that neurons do in fact regenerate, and new neurons can be added after maturity.
Hopefully, this quick report has given you some fascinating insight into the miracle of the body and the marvels that each and every one of us is carrying within us.